diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index e9b13e189..e93b0f8fe 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -5,7 +5,7 @@ on:
     types: [created]
 
 jobs:
-  publish:
+  publish-to-jsr:
     runs-on: ubuntu-latest
     permissions:
       contents: read
@@ -21,7 +21,7 @@ jobs:
       - name: Run deno publish
         run: npx jsr publish
 
-  publish-common:
+  publish-to-npm:
     runs-on: ubuntu-latest
     permissions:
       contents: read
@@ -35,194 +35,46 @@ jobs:
       - uses: denoland/setup-deno@v1
         with:
           deno-version: v1.x
-      - name: Run dnt
-        working-directory: ./packages/common
+      - name: Run deno task npm
         run: |
           npm install -g esbuild
-          deno task dnt
-      - name: Publish to npm
+          deno task npm
+      - name: Publish @hpke/common to npm
         working-directory: ./npm/packages/common
         run: npm publish --provenance
         env:
           NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}
-
-  publish-core:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      id-token: write
-    needs: publish-common
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
-        with:
-          node-version: 20
-          registry-url: https://registry.npmjs.org/
-      - uses: denoland/setup-deno@v1
-        with:
-          deno-version: v1.x
-      - name: Run dnt
-        working-directory: ./packages/core
-        run: |
-          npm install -g esbuild
-          deno task dnt
-      - name: Publish to npm
+      - name: Publish @hpke/core to npm
         working-directory: ./npm/packages/core
         run: npm publish --provenance
         env:
           NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}
-
-  publish-chacha20poly1305:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      id-token: write
-    needs: publish-core
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
-        with:
-          node-version: 20
-          registry-url: https://registry.npmjs.org/
-      - uses: denoland/setup-deno@v1
-        with:
-          deno-version: v1.x
-      - name: Run dnt
-        working-directory: ./packages/chacha20poly1305
-        run: |
-          npm install -g esbuild
-          deno task dnt
-      - name: Publish to npm
+      - name: Publish @hpke/chacha20poly1305 to npm
         working-directory: ./npm/packages/chacha20poly1305
         run: npm publish --provenance
         env:
           NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}
-
-  publish-dhkem-x25519:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      id-token: write
-    needs: publish-core
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
-        with:
-          node-version: 20
-          registry-url: https://registry.npmjs.org/
-      - uses: denoland/setup-deno@v1
-        with:
-          deno-version: v1.x
-      - name: Run dnt
-        working-directory: ./packages/dhkem-x25519
-        run: |
-          npm install -g esbuild
-          deno task dnt
-      - name: Publish to npm
+      - name: Publish @hpke/dhkem-x25519 to npm
         working-directory: ./npm/packages/dhkem-x25519
         run: npm publish --provenance
         env:
           NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}
-
-  publish-dhkem-x448:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      id-token: write
-    needs: publish-core
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
-        with:
-          node-version: 20
-          registry-url: https://registry.npmjs.org/
-      - uses: denoland/setup-deno@v1
-        with:
-          deno-version: v1.x
-      - name: Run dnt
-        working-directory: ./packages/dhkem-x448
-        run: |
-          npm install -g esbuild
-          deno task dnt
-      - name: Publish to npm
+      - name: Publish @hpke/dhkem-x448 to npm
         working-directory: ./npm/packages/dhkem-x448
         run: npm publish --provenance
         env:
           NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}
-
-  publish-hybridkem-x25519-kyber768:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      id-token: write
-    needs: publish-dhkem-x25519
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
-        with:
-          node-version: 20
-          registry-url: https://registry.npmjs.org/
-      - uses: denoland/setup-deno@v1
-        with:
-          deno-version: v1.x
-      - name: Run dnt
-        working-directory: ./packages/hybridkem-x25519-kyber768
-        run: |
-          npm install -g esbuild
-          deno task dnt
-      - name: Publish to npm
+      - name: Publish @hpke/hybridkem-x25519-kyber768 to npm
         working-directory: ./npm/packages/hybridkem-x25519-kyber768
         run: npm publish --provenance
         env:
           NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}
-
-  publish-dhkem-secp256k1:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      id-token: write
-    needs: publish-dhkem-x25519
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
-        with:
-          node-version: 20
-          registry-url: https://registry.npmjs.org/
-      - uses: denoland/setup-deno@v1
-        with:
-          deno-version: v1.x
-      - name: Run dnt
-        working-directory: ./packages/dhkem-secp256k1
-        run: |
-          npm install -g esbuild
-          deno task dnt
-      - name: Publish to npm
+      - name: Publish @hpke/dhkem-secp256k1 to npm
         working-directory: ./npm/packages/dhkem-secp256k1
         run: npm publish --provenance
         env:
           NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}
-
-  publish-hpke-js:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      id-token: write
-    needs: [publish-chacha20poly1305, publish-dhkem-x25519, publish-dhkem-x448]
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
-        with:
-          node-version: 20
-          registry-url: https://registry.npmjs.org/
-      - uses: denoland/setup-deno@v1
-        with:
-          deno-version: v1.x
-      - name: Run dnt
-        working-directory: ./packages/hpke-js
-        run: |
-          npm install -g esbuild
-          deno task dnt
-      - name: Publish to npm
+      - name: Publish hpke-js to npm
         working-directory: ./npm/packages/hpke-js
         run: npm publish --provenance
         env:
diff --git a/CHANGES.md b/CHANGES.md
index 81825d5a8..4ac29a19b 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,17 @@
 # Changes
 
+## Version 1.4.2
+
+Released 2024-10-06
+
+- [(#412) Refine publish workflow for npm packages.](https://github.com/dajiaji/hpke-js/pull/412)
+- [(#412) Add @hpke modules to import_map for dnt.](https://github.com/dajiaji/hpke-js/pull/412)
+- [(#412) Use npm/import_map for dnt.](https://github.com/dajiaji/hpke-js/pull/412)
+
+## Version 1.4.1
+
+Reverted to 1.3.1 2024-10-06
+
 ## Version 1.4.0
 
 Released 2024-10-06
diff --git a/npm/import_map.json b/npm/import_map.json
index 78fc2f642..f26b1694d 100644
--- a/npm/import_map.json
+++ b/npm/import_map.json
@@ -1,5 +1,21 @@
 {
   "imports": {
-    "@deno/dnt": "jsr:@deno/dnt@^0.41.3"
+    "@deno/dnt": "jsr:@deno/dnt@^0.41.3",
+    "@hpke/chacha20poly1305": "npm:@hpke/chacha20poly1305@^1.4.1",
+    "@hpke/common": "npm:@hpke/common@^1.4.1",
+    "@hpke/core": "npm:@hpke/core@^1.4.1",
+    "@hpke/dhkem-x25519": "npm:@hpke/dhkem-x25519@^1.4.1",
+    "@hpke/dhkem-x448": "npm:@hpke/dhkem-x448@^1.4.1",
+    "@noble/ciphers/chacha": "npm:@noble/ciphers@^0.5.3/chacha",
+    "@noble/curves/ed25519": "npm:@noble/curves@^1.4.2/ed25519",
+    "@noble/curves/ed448": "npm:@noble/curves@^1.4.2/ed448",
+    "@noble/curves/secp256k1": "npm:@noble/curves@^1.4.2/secp256k1",
+    "@noble/hashes/hmac": "npm:@noble/hashes@^1.4.0/hmac",
+    "@noble/hashes/sha256": "npm:@noble/hashes@^1.4.0/sha256",
+    "@noble/hashes/sha512": "npm:@noble/hashes@^1.4.0/sha512",
+    "@noble/hashes/sha3": "npm:@noble/hashes@^1.4.0/sha3",
+    "@std/assert": "jsr:@std/assert@1.0.0",
+    "@std/path": "jsr:@std/path@^1.0.3",
+    "@std/testing/bdd": "jsr:@std/testing@^1.0.0/bdd"
   }
 }
diff --git a/npm/package-lock.json b/npm/package-lock.json
index ac64ee97a..5d922ff4f 100644
--- a/npm/package-lock.json
+++ b/npm/package-lock.json
@@ -151,7 +151,7 @@
     },
     "packages/chacha20poly1305": {
       "name": "@hpke/chacha20poly1305",
-      "version": "1.4.0",
+      "version": "1.4.1",
       "license": "MIT",
       "dependencies": {
         "@noble/ciphers": "^0.5.3"
@@ -167,7 +167,7 @@
     },
     "packages/common": {
       "name": "@hpke/common",
-      "version": "1.4.0",
+      "version": "1.4.1",
       "license": "MIT",
       "devDependencies": {
         "@deno/shim-deno": "~0.18.0",
@@ -180,8 +180,11 @@
     },
     "packages/core": {
       "name": "@hpke/core",
-      "version": "1.4.0",
+      "version": "1.4.1",
       "license": "MIT",
+      "dependencies": {
+        "@hpke/common": "^1.4.1"
+      },
       "devDependencies": {
         "@deno/shim-deno": "~0.18.0",
         "@types/node": "^20.9.0",
@@ -193,13 +196,16 @@
     },
     "packages/dhkem-secp256k1": {
       "name": "@hpke/dhkem-secp256k1",
-      "version": "1.4.0",
+      "version": "1.4.1",
       "license": "MIT",
       "dependencies": {
+        "@hpke/common": "^1.4.1",
+        "@hpke/dhkem-x25519": "^1.4.1",
         "@noble/curves": "^1.4.2"
       },
       "devDependencies": {
         "@deno/shim-deno": "~0.18.0",
+        "@hpke/core": "^1.4.1",
         "@types/node": "^20.9.0",
         "picocolors": "^1.0.0"
       },
@@ -209,14 +215,16 @@
     },
     "packages/dhkem-x25519": {
       "name": "@hpke/dhkem-x25519",
-      "version": "1.4.0",
+      "version": "1.4.1",
       "license": "MIT",
       "dependencies": {
+        "@hpke/common": "^1.4.1",
         "@noble/curves": "^1.4.2",
         "@noble/hashes": "^1.4.0"
       },
       "devDependencies": {
         "@deno/shim-deno": "~0.18.0",
+        "@hpke/core": "^1.4.1",
         "@types/node": "^20.9.0",
         "picocolors": "^1.0.0"
       },
@@ -226,14 +234,16 @@
     },
     "packages/dhkem-x448": {
       "name": "@hpke/dhkem-x448",
-      "version": "1.4.0",
+      "version": "1.4.1",
       "license": "MIT",
       "dependencies": {
+        "@hpke/common": "^1.4.1",
         "@noble/curves": "^1.4.2",
         "@noble/hashes": "^1.4.0"
       },
       "devDependencies": {
         "@deno/shim-deno": "~0.18.0",
+        "@hpke/core": "^1.4.1",
         "@types/node": "^20.9.0",
         "picocolors": "^1.0.0"
       },
@@ -242,9 +252,14 @@
       }
     },
     "packages/hpke-js": {
-      "version": "1.4.0",
+      "version": "1.4.1",
       "license": "MIT",
       "dependencies": {
+        "@hpke/chacha20poly1305": "^1.4.1",
+        "@hpke/common": "^1.4.1",
+        "@hpke/core": "^1.4.1",
+        "@hpke/dhkem-x25519": "^1.4.1",
+        "@hpke/dhkem-x448": "^1.4.1",
         "@noble/hashes": "^1.4.0"
       },
       "devDependencies": {
@@ -258,137 +273,12 @@
     },
     "packages/hybridkem-x25519-kyber768": {
       "name": "@hpke/hybridkem-x25519-kyber768",
-      "version": "1.4.0",
-      "license": "MIT",
-      "dependencies": {
-        "@noble/hashes": "^1.4.0"
-      },
-      "devDependencies": {
-        "@deno/shim-deno": "~0.18.0",
-        "@types/node": "^20.9.0",
-        "picocolors": "^1.0.0"
-      },
-      "engines": {
-        "node": ">=16.0.0"
-      }
-    },
-    "x/chacha20poly1305": {
-      "name": "@hpke/chacha20poly1305",
-      "version": "1.3.1",
-      "extraneous": true,
-      "license": "MIT",
-      "dependencies": {
-        "@hpke/core": "^1.3.0",
-        "@noble/ciphers": "^0.5.3"
-      },
-      "devDependencies": {
-        "@deno/shim-deno": "~0.18.0",
-        "@types/node": "^20.9.0",
-        "picocolors": "^1.0.0"
-      },
-      "engines": {
-        "node": ">=16.0.0"
-      }
-    },
-    "x/core": {
-      "name": "@hpke/core",
-      "version": "1.3.1",
-      "extraneous": true,
-      "license": "MIT",
-      "devDependencies": {
-        "@deno/shim-deno": "~0.18.0",
-        "@types/node": "^20.9.0",
-        "picocolors": "^1.0.0"
-      },
-      "engines": {
-        "node": ">=16.0.0"
-      }
-    },
-    "x/dhkem-secp256k1": {
-      "name": "@hpke/dhkem-secp256k1",
-      "version": "1.3.1",
-      "extraneous": true,
-      "license": "MIT",
-      "dependencies": {
-        "@hpke/core": "^1.3.0",
-        "@hpke/dhkem-x25519": "^1.3.0",
-        "@noble/curves": "^1.4.2"
-      },
-      "devDependencies": {
-        "@deno/shim-deno": "~0.18.0",
-        "@types/node": "^20.9.0",
-        "picocolors": "^1.0.0"
-      },
-      "engines": {
-        "node": ">=16.0.0"
-      }
-    },
-    "x/dhkem-x25519": {
-      "name": "@hpke/dhkem-x25519",
-      "version": "1.3.1",
-      "extraneous": true,
-      "license": "MIT",
-      "dependencies": {
-        "@hpke/core": "^1.3.0",
-        "@noble/curves": "^1.4.2",
-        "@noble/hashes": "^1.4.0"
-      },
-      "devDependencies": {
-        "@deno/shim-deno": "~0.18.0",
-        "@types/node": "^20.9.0",
-        "picocolors": "^1.0.0"
-      },
-      "engines": {
-        "node": ">=16.0.0"
-      }
-    },
-    "x/dhkem-x448": {
-      "name": "@hpke/dhkem-x448",
-      "version": "1.3.1",
-      "extraneous": true,
-      "license": "MIT",
-      "dependencies": {
-        "@hpke/core": "^1.3.0",
-        "@noble/curves": "^1.4.2",
-        "@noble/hashes": "^1.4.0"
-      },
-      "devDependencies": {
-        "@deno/shim-deno": "~0.18.0",
-        "@types/node": "^20.9.0",
-        "picocolors": "^1.0.0"
-      },
-      "engines": {
-        "node": ">=16.0.0"
-      }
-    },
-    "x/hpke-js": {
-      "version": "1.3.1",
-      "extraneous": true,
-      "license": "MIT",
-      "dependencies": {
-        "@hpke/chacha20poly1305": "^1.3.0",
-        "@hpke/core": "^1.3.0",
-        "@hpke/dhkem-x25519": "^1.3.0",
-        "@hpke/dhkem-x448": "^1.3.0",
-        "@noble/hashes": "^1.4.0"
-      },
-      "devDependencies": {
-        "@deno/shim-deno": "~0.18.0",
-        "@types/node": "^20.9.0",
-        "picocolors": "^1.0.0"
-      },
-      "engines": {
-        "node": ">=16.0.0"
-      }
-    },
-    "x/hybridkem-x25519-kyber768": {
-      "name": "@hpke/hybridkem-x25519-kyber768",
-      "version": "1.3.1",
-      "extraneous": true,
+      "version": "1.4.1",
       "license": "MIT",
       "dependencies": {
-        "@hpke/core": "^1.3.0",
-        "@hpke/dhkem-x25519": "^1.3.0",
+        "@hpke/common": "^1.4.1",
+        "@hpke/core": "^1.4.1",
+        "@hpke/dhkem-x25519": "^1.4.1",
         "@noble/hashes": "^1.4.0"
       },
       "devDependencies": {
diff --git a/packages/chacha20poly1305/deno.json b/packages/chacha20poly1305/deno.json
index 26fd20959..12bebfe0a 100644
--- a/packages/chacha20poly1305/deno.json
+++ b/packages/chacha20poly1305/deno.json
@@ -1,6 +1,6 @@
 {
   "name": "@hpke/chacha20poly1305",
-  "version": "1.4.0",
+  "version": "1.4.2",
   "exports": "./mod.ts",
   "imports": {
     "@noble/ciphers": "npm:@noble/ciphers@^0.5.3"
diff --git a/packages/chacha20poly1305/samples/node/package-lock.json b/packages/chacha20poly1305/samples/node/package-lock.json
index e3d09098b..118515e98 100644
--- a/packages/chacha20poly1305/samples/node/package-lock.json
+++ b/packages/chacha20poly1305/samples/node/package-lock.json
@@ -9,14 +9,14 @@
       "version": "1.0.0",
       "license": "MIT",
       "dependencies": {
-        "@hpke/chacha20poly1305": "^1.3.0",
-        "@hpke/core": "^1.3.0"
+        "@hpke/chacha20poly1305": "^1.4.1",
+        "@hpke/core": "^1.4.1"
       }
     },
     "node_modules/@hpke/chacha20poly1305": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/@hpke/chacha20poly1305/-/chacha20poly1305-1.3.1.tgz",
-      "integrity": "sha512-kX8D5y04o+SxGJSJMA4r3+YtxOSHir7QxRFuANCVB4hr7Dm7oVwce9iVUQJtOPRSc4mddFlRFq4SQyy2mI4KQA==",
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/@hpke/chacha20poly1305/-/chacha20poly1305-1.4.1.tgz",
+      "integrity": "sha512-TLEQ2XiqwPDm3im0pWr2ge963XTDMx1DRPY/4r+N+jZgSEQGndtwEfwWvMFKviqUg/xzwej3Rouj25d1sqoOuA==",
       "license": "MIT",
       "dependencies": {
         "@hpke/core": "^1.3.0",
@@ -27,9 +27,9 @@
       }
     },
     "node_modules/@hpke/core": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/@hpke/core/-/core-1.3.1.tgz",
-      "integrity": "sha512-ilWdCYbaTyvQGrMMi5LKcy320/sleGdSR2eKo8B1QOEEWi5EZT+k0B/K5o51AcPLJWaLiY1WFJhSIynTKGI35g==",
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/@hpke/core/-/core-1.4.1.tgz",
+      "integrity": "sha512-zKFqOwCCSPdGHyH1FxvSFrfA3i6raD5yY21PxtCWjXAbd5xhUPeiIRt6pqLAWCyTcP9qjtBc9NOBvHGHRZjGrQ==",
       "license": "MIT",
       "engines": {
         "node": ">=16.0.0"
diff --git a/packages/chacha20poly1305/samples/node/package.json b/packages/chacha20poly1305/samples/node/package.json
index 93294f592..8561a04b6 100644
--- a/packages/chacha20poly1305/samples/node/package.json
+++ b/packages/chacha20poly1305/samples/node/package.json
@@ -7,7 +7,7 @@
   "author": "Ajitomi Daisuke <ajitomi@gmail.com> (https://github.com/dajiaji)",
   "license": "MIT",
   "dependencies": {
-    "@hpke/chacha20poly1305": "^1.3.1",
-    "@hpke/core": "^1.3.1"
+    "@hpke/chacha20poly1305": "^1.4.1",
+    "@hpke/core": "^1.4.1"
   }
 }
diff --git a/packages/common/deno.json b/packages/common/deno.json
index 10eb54451..9f18ef31b 100644
--- a/packages/common/deno.json
+++ b/packages/common/deno.json
@@ -1,6 +1,6 @@
 {
   "name": "@hpke/common",
-  "version": "1.4.0",
+  "version": "1.4.2",
   "exports": "./mod.ts",
   "publish": {
     "exclude": [
diff --git a/packages/common/dnt.ts b/packages/common/dnt.ts
index 3d26169fd..e41d7ce52 100644
--- a/packages/common/dnt.ts
+++ b/packages/common/dnt.ts
@@ -11,7 +11,7 @@ await build({
   test: true,
   declaration: true,
   scriptModule: "umd",
-  importMap: "../../import_map.json",
+  importMap: "../../npm/import_map.json",
   compilerOptions: {
     lib: ["ES2022", "DOM"],
   },
diff --git a/packages/core/deno.json b/packages/core/deno.json
index 20f6695d0..df905bf37 100644
--- a/packages/core/deno.json
+++ b/packages/core/deno.json
@@ -1,6 +1,6 @@
 {
   "name": "@hpke/core",
-  "version": "1.4.0",
+  "version": "1.4.2",
   "exports": "./mod.ts",
   "publish": {
     "exclude": [
diff --git a/packages/core/dnt.ts b/packages/core/dnt.ts
index 58e297d10..0084fc0c0 100644
--- a/packages/core/dnt.ts
+++ b/packages/core/dnt.ts
@@ -14,7 +14,7 @@ await build({
   test: true,
   declaration: true,
   scriptModule: "umd",
-  importMap: "../../import_map.json",
+  importMap: "../../npm/import_map.json",
   compilerOptions: {
     lib: ["ES2022", "DOM"],
   },
diff --git a/packages/core/samples/node/package-lock.json b/packages/core/samples/node/package-lock.json
index dd51fff60..9e978f347 100644
--- a/packages/core/samples/node/package-lock.json
+++ b/packages/core/samples/node/package-lock.json
@@ -9,13 +9,13 @@
       "version": "1.0.0",
       "license": "MIT",
       "dependencies": {
-        "@hpke/core": "^1.3.1"
+        "@hpke/core": "^1.4.1"
       }
     },
     "node_modules/@hpke/core": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/@hpke/core/-/core-1.3.1.tgz",
-      "integrity": "sha512-ilWdCYbaTyvQGrMMi5LKcy320/sleGdSR2eKo8B1QOEEWi5EZT+k0B/K5o51AcPLJWaLiY1WFJhSIynTKGI35g==",
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/@hpke/core/-/core-1.4.1.tgz",
+      "integrity": "sha512-zKFqOwCCSPdGHyH1FxvSFrfA3i6raD5yY21PxtCWjXAbd5xhUPeiIRt6pqLAWCyTcP9qjtBc9NOBvHGHRZjGrQ==",
       "license": "MIT",
       "engines": {
         "node": ">=16.0.0"
diff --git a/packages/core/samples/node/package.json b/packages/core/samples/node/package.json
index 91e20f975..3b72e4c80 100644
--- a/packages/core/samples/node/package.json
+++ b/packages/core/samples/node/package.json
@@ -7,6 +7,6 @@
   "author": "Ajitomi Daisuke <ajitomi@gmail.com> (https://github.com/dajiaji)",
   "license": "MIT",
   "dependencies": {
-    "@hpke/core": "^1.3.1"
+    "@hpke/core": "^1.4.1"
   }
 }
diff --git a/packages/dhkem-secp256k1/deno.json b/packages/dhkem-secp256k1/deno.json
index 0b7aeb388..5c0031793 100644
--- a/packages/dhkem-secp256k1/deno.json
+++ b/packages/dhkem-secp256k1/deno.json
@@ -1,6 +1,6 @@
 {
   "name": "@hpke/dhkem-secp256k1",
-  "version": "1.4.0",
+  "version": "1.4.2",
   "exports": "./mod.ts",
   "imports": {
     "@noble/curves": "npm:@noble/curves@^1.4.2"
diff --git a/packages/dhkem-secp256k1/dnt.ts b/packages/dhkem-secp256k1/dnt.ts
index 50018acef..835726b12 100644
--- a/packages/dhkem-secp256k1/dnt.ts
+++ b/packages/dhkem-secp256k1/dnt.ts
@@ -14,7 +14,7 @@ await build({
   test: true,
   declaration: true,
   scriptModule: "umd",
-  importMap: "../../import_map.json",
+  importMap: "../../npm/import_map.json",
   compilerOptions: {
     lib: ["ES2022", "DOM"],
   },
diff --git a/packages/dhkem-secp256k1/samples/node/package-lock.json b/packages/dhkem-secp256k1/samples/node/package-lock.json
index 1cb5eb0e5..a871a1ada 100644
--- a/packages/dhkem-secp256k1/samples/node/package-lock.json
+++ b/packages/dhkem-secp256k1/samples/node/package-lock.json
@@ -9,23 +9,23 @@
       "version": "1.0.0",
       "license": "MIT",
       "dependencies": {
-        "@hpke/core": "^1.3.1",
-        "@hpke/dhkem-secp256k1": "^1.3.1"
+        "@hpke/core": "^1.4.1",
+        "@hpke/dhkem-secp256k1": "^1.4.1"
       }
     },
     "node_modules/@hpke/core": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/@hpke/core/-/core-1.3.1.tgz",
-      "integrity": "sha512-ilWdCYbaTyvQGrMMi5LKcy320/sleGdSR2eKo8B1QOEEWi5EZT+k0B/K5o51AcPLJWaLiY1WFJhSIynTKGI35g==",
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/@hpke/core/-/core-1.4.1.tgz",
+      "integrity": "sha512-zKFqOwCCSPdGHyH1FxvSFrfA3i6raD5yY21PxtCWjXAbd5xhUPeiIRt6pqLAWCyTcP9qjtBc9NOBvHGHRZjGrQ==",
       "license": "MIT",
       "engines": {
         "node": ">=16.0.0"
       }
     },
     "node_modules/@hpke/dhkem-secp256k1": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/@hpke/dhkem-secp256k1/-/dhkem-secp256k1-1.3.1.tgz",
-      "integrity": "sha512-xM1R7HNnBA6i3b4jFt7C9K0Dcvf6zeXkMdeK2UU7K13MG0+otdq6F8VCC9t8wtyxnCPhRXrozdaT2VV2GRDktA==",
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/@hpke/dhkem-secp256k1/-/dhkem-secp256k1-1.4.1.tgz",
+      "integrity": "sha512-Yqkfi8CHfjef30Zp7k87pH5TMyMKaIJeo9xounSFbyg10G36uGwggHlHQwYlhmPwVULxfLtVJIXtW0+L/1GsyA==",
       "license": "MIT",
       "dependencies": {
         "@hpke/core": "^1.3.0",
diff --git a/packages/dhkem-secp256k1/samples/node/package.json b/packages/dhkem-secp256k1/samples/node/package.json
index aabf2fd07..301c3e812 100644
--- a/packages/dhkem-secp256k1/samples/node/package.json
+++ b/packages/dhkem-secp256k1/samples/node/package.json
@@ -7,7 +7,7 @@
   "author": "Ajitomi Daisuke <ajitomi@gmail.com> (https://github.com/dajiaji)",
   "license": "MIT",
   "dependencies": {
-    "@hpke/core": "^1.3.1",
-    "@hpke/dhkem-secp256k1": "^1.3.1"
+    "@hpke/core": "^1.4.1",
+    "@hpke/dhkem-secp256k1": "^1.4.1"
   }
 }
diff --git a/packages/dhkem-x25519/deno.json b/packages/dhkem-x25519/deno.json
index 45dc9e1f1..6e11bdc64 100644
--- a/packages/dhkem-x25519/deno.json
+++ b/packages/dhkem-x25519/deno.json
@@ -1,6 +1,6 @@
 {
   "name": "@hpke/dhkem-x25519",
-  "version": "1.4.0",
+  "version": "1.4.2",
   "exports": "./mod.ts",
   "imports": {
     "@noble/curves": "npm:@noble/curves@^1.4.2",
diff --git a/packages/dhkem-x25519/dnt.ts b/packages/dhkem-x25519/dnt.ts
index f4d40f9d2..0387992f8 100644
--- a/packages/dhkem-x25519/dnt.ts
+++ b/packages/dhkem-x25519/dnt.ts
@@ -14,7 +14,7 @@ await build({
   test: true,
   declaration: true,
   scriptModule: "umd",
-  importMap: "../../import_map.json",
+  importMap: "../../npm/import_map.json",
   compilerOptions: {
     lib: ["ES2022", "DOM"],
   },
diff --git a/packages/dhkem-x25519/samples/node/package-lock.json b/packages/dhkem-x25519/samples/node/package-lock.json
index 702f40614..310e007ee 100644
--- a/packages/dhkem-x25519/samples/node/package-lock.json
+++ b/packages/dhkem-x25519/samples/node/package-lock.json
@@ -9,23 +9,23 @@
       "version": "1.0.0",
       "license": "MIT",
       "dependencies": {
-        "@hpke/core": "^1.3.1",
-        "@hpke/dhkem-x25519": "^1.3.1"
+        "@hpke/core": "^1.4.1",
+        "@hpke/dhkem-x25519": "^1.4.1"
       }
     },
     "node_modules/@hpke/core": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/@hpke/core/-/core-1.3.1.tgz",
-      "integrity": "sha512-ilWdCYbaTyvQGrMMi5LKcy320/sleGdSR2eKo8B1QOEEWi5EZT+k0B/K5o51AcPLJWaLiY1WFJhSIynTKGI35g==",
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/@hpke/core/-/core-1.4.1.tgz",
+      "integrity": "sha512-zKFqOwCCSPdGHyH1FxvSFrfA3i6raD5yY21PxtCWjXAbd5xhUPeiIRt6pqLAWCyTcP9qjtBc9NOBvHGHRZjGrQ==",
       "license": "MIT",
       "engines": {
         "node": ">=16.0.0"
       }
     },
     "node_modules/@hpke/dhkem-x25519": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/@hpke/dhkem-x25519/-/dhkem-x25519-1.3.1.tgz",
-      "integrity": "sha512-BR0s6GYTbCufMRnG7byuRGvtby61kc3od1AaI+LJDkgmmLdsEcr7mk8cfbMncse1PlHVWLoFcMX67ATyGoDwcw==",
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/@hpke/dhkem-x25519/-/dhkem-x25519-1.4.1.tgz",
+      "integrity": "sha512-zNmwDeV2Rv4YnBnJJD8hecJeD1N26fmGUl9x52EdG5XUtFiyyuZ5UbF+E4XUE5AMQ0OthkB3tgSWoFpz5nATOw==",
       "license": "MIT",
       "dependencies": {
         "@hpke/core": "^1.3.0",
diff --git a/packages/dhkem-x25519/samples/node/package.json b/packages/dhkem-x25519/samples/node/package.json
index 1f991ae4b..407342d61 100644
--- a/packages/dhkem-x25519/samples/node/package.json
+++ b/packages/dhkem-x25519/samples/node/package.json
@@ -7,7 +7,7 @@
   "author": "Ajitomi Daisuke <ajitomi@gmail.com> (https://github.com/dajiaji)",
   "license": "MIT",
   "dependencies": {
-    "@hpke/core": "^1.3.1",
-    "@hpke/dhkem-x25519": "^1.3.1"
+    "@hpke/core": "^1.4.1",
+    "@hpke/dhkem-x25519": "^1.4.1"
   }
 }
diff --git a/packages/dhkem-x448/deno.json b/packages/dhkem-x448/deno.json
index 984d5e617..8c605612a 100644
--- a/packages/dhkem-x448/deno.json
+++ b/packages/dhkem-x448/deno.json
@@ -1,6 +1,6 @@
 {
   "name": "@hpke/dhkem-x448",
-  "version": "1.4.0",
+  "version": "1.4.2",
   "exports": "./mod.ts",
   "imports": {
     "@noble/curves": "npm:@noble/curves@^1.4.2",
diff --git a/packages/dhkem-x448/dnt.ts b/packages/dhkem-x448/dnt.ts
index b978357a0..6c50351d1 100644
--- a/packages/dhkem-x448/dnt.ts
+++ b/packages/dhkem-x448/dnt.ts
@@ -14,7 +14,7 @@ await build({
   test: true,
   declaration: true,
   scriptModule: "umd",
-  importMap: "../../import_map.json",
+  importMap: "../../npm/import_map.json",
   compilerOptions: {
     lib: ["ES2022", "DOM"],
   },
diff --git a/packages/dhkem-x448/samples/node/package-lock.json b/packages/dhkem-x448/samples/node/package-lock.json
index 985f008b0..234c9208b 100644
--- a/packages/dhkem-x448/samples/node/package-lock.json
+++ b/packages/dhkem-x448/samples/node/package-lock.json
@@ -9,23 +9,23 @@
       "version": "1.0.0",
       "license": "MIT",
       "dependencies": {
-        "@hpke/core": "^1.3.1",
-        "@hpke/dhkem-x448": "^1.3.1"
+        "@hpke/core": "^1.4.1",
+        "@hpke/dhkem-x448": "^1.4.1"
       }
     },
     "node_modules/@hpke/core": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/@hpke/core/-/core-1.3.1.tgz",
-      "integrity": "sha512-ilWdCYbaTyvQGrMMi5LKcy320/sleGdSR2eKo8B1QOEEWi5EZT+k0B/K5o51AcPLJWaLiY1WFJhSIynTKGI35g==",
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/@hpke/core/-/core-1.4.1.tgz",
+      "integrity": "sha512-zKFqOwCCSPdGHyH1FxvSFrfA3i6raD5yY21PxtCWjXAbd5xhUPeiIRt6pqLAWCyTcP9qjtBc9NOBvHGHRZjGrQ==",
       "license": "MIT",
       "engines": {
         "node": ">=16.0.0"
       }
     },
     "node_modules/@hpke/dhkem-x448": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/@hpke/dhkem-x448/-/dhkem-x448-1.3.1.tgz",
-      "integrity": "sha512-xsy/1nfbi+pbWUZtQAx4uXj9IJ5Db8QAfuT8m0JZq3CZbWy/3qn9WV6NUFdg3pqNW7WEK99yirHyaIXBfqTOIA==",
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/@hpke/dhkem-x448/-/dhkem-x448-1.4.1.tgz",
+      "integrity": "sha512-Aa5wWA2lrUip3VMD4qdIIrPBuZxHXe4ey+wI90E8EeOCIXPKIh2/J7yPnIp4W1QglRnQcfEnSVBmWPGj6lbJGg==",
       "license": "MIT",
       "dependencies": {
         "@hpke/core": "^1.3.0",
diff --git a/packages/dhkem-x448/samples/node/package.json b/packages/dhkem-x448/samples/node/package.json
index 199037552..8545c7733 100644
--- a/packages/dhkem-x448/samples/node/package.json
+++ b/packages/dhkem-x448/samples/node/package.json
@@ -7,7 +7,7 @@
   "author": "Ajitomi Daisuke <ajitomi@gmail.com> (https://github.com/dajiaji)",
   "license": "MIT",
   "dependencies": {
-    "@hpke/core": "^1.3.1",
-    "@hpke/dhkem-x448": "^1.3.1"
+    "@hpke/core": "^1.4.1",
+    "@hpke/dhkem-x448": "^1.4.1"
   }
 }
diff --git a/packages/hpke-js/deno.json b/packages/hpke-js/deno.json
index 4e567ae75..8f21b2755 100644
--- a/packages/hpke-js/deno.json
+++ b/packages/hpke-js/deno.json
@@ -1,6 +1,6 @@
 {
   "name": "@hpke/hpke-js",
-  "version": "1.4.0",
+  "version": "1.4.2",
   "exports": "./mod.ts",
   "imports": {
     "@noble/hashes": "npm:@noble/hashes@^1.4.0"
diff --git a/packages/hpke-js/dnt.ts b/packages/hpke-js/dnt.ts
index 20c5fdf31..5981654b1 100644
--- a/packages/hpke-js/dnt.ts
+++ b/packages/hpke-js/dnt.ts
@@ -14,7 +14,7 @@ await build({
   test: true,
   declaration: "inline",
   scriptModule: "umd",
-  importMap: "../../import_map.json",
+  importMap: "../../npm/import_map.json",
   compilerOptions: {
     lib: ["ES2022", "DOM"],
   },
diff --git a/packages/hpke-js/samples/node/package-lock.json b/packages/hpke-js/samples/node/package-lock.json
index 387c818af..e40abca33 100644
--- a/packages/hpke-js/samples/node/package-lock.json
+++ b/packages/hpke-js/samples/node/package-lock.json
@@ -9,7 +9,7 @@
       "version": "1.0.0",
       "license": "MIT",
       "dependencies": {
-        "hpke-js": "^1.3.1"
+        "hpke-js": "^1.4.1"
       }
     },
     "node_modules/@hpke/chacha20poly1305": {
@@ -96,9 +96,9 @@
       }
     },
     "node_modules/hpke-js": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/hpke-js/-/hpke-js-1.3.1.tgz",
-      "integrity": "sha512-5qEeLXw1mROAPmuEhU7/JdEpdC49jXBLb6zj274ciG49HjoQjm8ABTnyZMd2jKl76wWwjzb9puLmm1bZ1PtygA==",
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/hpke-js/-/hpke-js-1.4.1.tgz",
+      "integrity": "sha512-vZDNKJNLjmtwwW4rRY8Nz+R0IP0HW30S6LwIpc+tscqop6+W9qepMForKNpqBA/6NWq+dLplmf3z28BS9RozAw==",
       "license": "MIT",
       "dependencies": {
         "@hpke/chacha20poly1305": "^1.3.0",
diff --git a/packages/hpke-js/samples/node/package.json b/packages/hpke-js/samples/node/package.json
index 6b079879e..39e03bada 100644
--- a/packages/hpke-js/samples/node/package.json
+++ b/packages/hpke-js/samples/node/package.json
@@ -7,6 +7,6 @@
   "author": "Ajitomi Daisuke <ajitomi@gmail.com> (https://github.com/dajiaji)",
   "license": "MIT",
   "dependencies": {
-    "hpke-js": "^1.3.1"
+    "hpke-js": "^1.4.1"
   }
 }
diff --git a/packages/hybridkem-x25519-kyber768/deno.json b/packages/hybridkem-x25519-kyber768/deno.json
index 51e5f0b79..6db848885 100644
--- a/packages/hybridkem-x25519-kyber768/deno.json
+++ b/packages/hybridkem-x25519-kyber768/deno.json
@@ -1,6 +1,6 @@
 {
   "name": "@hpke/hybridkem-x25519-kyber768",
-  "version": "1.4.0",
+  "version": "1.4.2",
   "exports": "./mod.ts",
   "imports": {
     "@noble/hashes": "npm:@noble/hashes@^1.4.0"
diff --git a/packages/hybridkem-x25519-kyber768/dnt.ts b/packages/hybridkem-x25519-kyber768/dnt.ts
index cf3ab0187..4a12caebc 100644
--- a/packages/hybridkem-x25519-kyber768/dnt.ts
+++ b/packages/hybridkem-x25519-kyber768/dnt.ts
@@ -14,7 +14,7 @@ await build({
   test: true,
   declaration: true,
   scriptModule: "umd",
-  importMap: "../../import_map.json",
+  importMap: "../../npm/import_map.json",
   compilerOptions: {
     lib: ["ES2022", "DOM"],
   },
diff --git a/packages/hybridkem-x25519-kyber768/samples/node/package-lock.json b/packages/hybridkem-x25519-kyber768/samples/node/package-lock.json
index bd936d1d8..69eade9d8 100644
--- a/packages/hybridkem-x25519-kyber768/samples/node/package-lock.json
+++ b/packages/hybridkem-x25519-kyber768/samples/node/package-lock.json
@@ -9,14 +9,14 @@
       "version": "1.0.0",
       "license": "MIT",
       "dependencies": {
-        "@hpke/core": "^1.3.1",
-        "@hpke/hybridkem-x25519-kyber768": "^1.3.1"
+        "@hpke/core": "^1.4.1",
+        "@hpke/hybridkem-x25519-kyber768": "^1.4.1"
       }
     },
     "node_modules/@hpke/core": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/@hpke/core/-/core-1.3.1.tgz",
-      "integrity": "sha512-ilWdCYbaTyvQGrMMi5LKcy320/sleGdSR2eKo8B1QOEEWi5EZT+k0B/K5o51AcPLJWaLiY1WFJhSIynTKGI35g==",
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/@hpke/core/-/core-1.4.1.tgz",
+      "integrity": "sha512-zKFqOwCCSPdGHyH1FxvSFrfA3i6raD5yY21PxtCWjXAbd5xhUPeiIRt6pqLAWCyTcP9qjtBc9NOBvHGHRZjGrQ==",
       "license": "MIT",
       "engines": {
         "node": ">=16.0.0"
@@ -37,9 +37,9 @@
       }
     },
     "node_modules/@hpke/hybridkem-x25519-kyber768": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/@hpke/hybridkem-x25519-kyber768/-/hybridkem-x25519-kyber768-1.3.1.tgz",
-      "integrity": "sha512-wrJQexbbWdLDruqsgb7ZeE+DL+yWFgSw3Kl4ANyBHUWyQo/qF7ykIbcc6+80qjLyArLwPfrJoEYgKJ5Akwmqlg==",
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/@hpke/hybridkem-x25519-kyber768/-/hybridkem-x25519-kyber768-1.4.1.tgz",
+      "integrity": "sha512-wJsBOe0TxRPqaZdftMohOvz9UN9bnJhRnSrZv/xgk6jCkUsqY3/kDsygzTscfm9PdgI3qr5HKCTZLN6yqhyIdw==",
       "license": "MIT",
       "dependencies": {
         "@hpke/core": "^1.3.0",
diff --git a/packages/hybridkem-x25519-kyber768/samples/node/package.json b/packages/hybridkem-x25519-kyber768/samples/node/package.json
index 93fdd2482..d81ef7972 100644
--- a/packages/hybridkem-x25519-kyber768/samples/node/package.json
+++ b/packages/hybridkem-x25519-kyber768/samples/node/package.json
@@ -7,7 +7,7 @@
   "author": "Ajitomi Daisuke <ajitomi@gmail.com> (https://github.com/dajiaji)",
   "license": "MIT",
   "dependencies": {
-    "@hpke/core": "^1.3.1",
-    "@hpke/hybridkem-x25519-kyber768": "^1.3.1"
+    "@hpke/core": "^1.4.1",
+    "@hpke/hybridkem-x25519-kyber768": "^1.4.1"
   }
 }