diff --git a/package.json b/package.json
index b87a4c9..847aa7f 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "prettier": "^3.1.1",
     "textlint-scripts": "^13.4.1",
     "textlint-tester": "^13.4.1",
-    "typescript": "^5.3.3"
+    "typescript": "^5.4.2"
   },
   "peerDependencies": {
     "textlint": ">=13.4.1"
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 68a679f..6e444ed 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -21,13 +21,13 @@ devDependencies:
     version: 3.1.1
   textlint-scripts:
     specifier: ^13.4.1
-    version: 13.4.1(typescript@5.3.3)
+    version: 13.4.1(typescript@5.4.2)
   textlint-tester:
     specifier: ^13.4.1
     version: 13.4.1
   typescript:
-    specifier: ^5.3.3
-    version: 5.3.3
+    specifier: ^5.4.2
+    version: 5.4.2
 
 packages:
 
@@ -3398,7 +3398,7 @@ packages:
     resolution: {integrity: sha512-N+8UisAXDGk8PFXP4HAzVR9nbfmVJ3zYLAWiTIoqC5v5isinhr+r5uaO8+7r3BMfuNIufIsA7RdpVgacC2cSpw==}
     dev: false
 
-  /textlint-scripts@13.4.1(typescript@5.3.3):
+  /textlint-scripts@13.4.1(typescript@5.4.2):
     resolution: {integrity: sha512-THIF7pNNCICZ3SlCac7lh12MDSiJJry6JnrymWNAOPYByQ/RQV+L6LjMrEqshXvKiVxuQjlSfZsIyOZ/NGv0fQ==}
     hasBin: true
     peerDependencies:
@@ -3421,7 +3421,7 @@ packages:
       mocha: 10.2.0
       pkg-to-readme: 1.1.2
       textlint-tester: 13.4.1
-      typescript: 5.3.3
+      typescript: 5.4.2
     transitivePeerDependencies:
       - supports-color
     dev: true
@@ -3528,8 +3528,8 @@ packages:
     engines: {node: '>=8'}
     dev: true
 
-  /typescript@5.3.3:
-    resolution: {integrity: sha512-pXWcraxM0uxAS+tN0AG/BF2TyqmHO014Z070UsJ+pFvYuRSq8KH8DmWpnbXe0pEPDHXZV3FcAbJkijJ5oNEnWw==}
+  /typescript@5.4.2:
+    resolution: {integrity: sha512-+2/g0Fds1ERlP6JsakQQDXjZdZMM+rqpamFZJEKh4kwTIn3iDkgKtby0CeNd5ATNZ4Ry1ax15TMx0W2V+miizQ==}
     engines: {node: '>=14.17'}
     hasBin: true
     dev: true