diff --git a/.github/workflows/publish-casper-client-sdk.yml b/.github/workflows/publish-casper-client-sdk.yml
index ac3f2eb9b..3354741f9 100644
--- a/.github/workflows/publish-casper-client-sdk.yml
+++ b/.github/workflows/publish-casper-client-sdk.yml
@@ -32,12 +32,9 @@ jobs:
     - name: Get latest release version number
       id: get_version
       uses: battila7/get-version-action@v2
-    - run: npm run build:umd
-      env: 
-        INPUT_TOKEN: ''
-    - run: mv dist/lib.umd.js dist/casper-client-sdk.v${{ steps.get_version.outputs.version }}.umd.js
+    - run: cp dist/lib.js casper-client-sdk.v${{ steps.get_version.outputs.version }}.js
     - uses: meeDamian/github-release@2.0
       with:
         token: ${{ secrets.GITHUB_TOKEN }}
-        files: dist/casper-client-sdk.v${{ steps.get_version.outputs.version }}.umd.js
+        files: casper-client-sdk.v${{ steps.get_version.outputs.version }}.js
         allow_override: true
diff --git a/package.json b/package.json
index 3d7d55358..36c9f6e74 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "casper-client-sdk",
-  "version": "1.0.30",
+  "version": "1.0.31",
   "license": "Apache 2.0",
   "description": "SDK to interact with the Casper blockchain",
   "main": "dist/lib.node.js",
@@ -11,7 +11,6 @@
     "lint": "eslint src/ --fix",
     "prebuild": "npm run clean && npm run lint",
     "build": "webpack --config webpack.config.js",
-    "build:umd": "webpack --config webpack.config.umd.js",
     "clean": "rm -rf ./dist",
     "~build": "tsc --watch",
     "test": "TS_NODE_FILES=true mocha -r ts-node/register test/**/*.test.ts",
diff --git a/webpack.config.js b/webpack.config.js
index 3456be5ca..26b8c5089 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -23,7 +23,8 @@ const serverConfig = {
   target: 'node',
   output: {
     path: path.resolve(__dirname, 'dist'),
-    filename: 'lib.node.js'
+    filename: 'lib.node.js',
+    libraryTarget: 'umd'
   },
   externals: [nodeExternals()] // in order to ignore all modules in node_modules folder
 };
@@ -47,7 +48,8 @@ const clientConfig = {
   ],
   output: {
     path: path.resolve(__dirname, 'dist'),
-    filename: 'lib.js'
+    filename: 'lib.js',
+    libraryTarget: 'umd'
   }
 };
 
diff --git a/webpack.config.umd.js b/webpack.config.umd.js
deleted file mode 100644
index 7c9a7404b..000000000
--- a/webpack.config.umd.js
+++ /dev/null
@@ -1,12 +0,0 @@
-const path = require('path');
-const config = require('./webpack.config');
-
-module.exports = {
-  ...config[1],
-  output: {
-    filename: 'lib.umd.js',
-    path: path.resolve(__dirname, 'dist'),
-    libraryTarget: 'umd',
-    globalObject: 'this'
-  }
-};