diff --git a/js/package-lock.json b/js/package-lock.json
index 766333e47..5a1be7a58 100644
--- a/js/package-lock.json
+++ b/js/package-lock.json
@@ -7108,9 +7108,9 @@
       }
     },
     "webpack-merge": {
-      "version": "4.1.5",
-      "resolved": "https://registry.npmjs.org/webpack-merge/-/webpack-merge-4.1.5.tgz",
-      "integrity": "sha512-sVcM+MMJv6DO0C0GLLltx8mUlGMKXE0zBsuMqZ9jz2X9gsekALw6Rs0cAfTWc97VuWS6NpVUa78959zANnMMLQ==",
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/webpack-merge/-/webpack-merge-4.2.1.tgz",
+      "integrity": "sha512-4p8WQyS98bUJcCvFMbdGZyZmsKuWjWVnVHnAS3FFg0HDaRVrPbkivx2RYCre8UiemD67RsiFFLfn4JhLAin8Vw==",
       "dev": true,
       "requires": {
         "lodash": "^4.17.5"
diff --git a/js/package.json b/js/package.json
index 9976accac..be5c3edc2 100644
--- a/js/package.json
+++ b/js/package.json
@@ -32,7 +32,7 @@
     "uglifyjs-webpack-plugin": "^2.1.1",
     "webpack": "^4.28.3",
     "webpack-cli": "^3.1.2",
-    "webpack-merge": "^4.1.5"
+    "webpack-merge": "^4.2.1"
   },
   "scripts": {
     "build": "./node_modules/webpack-cli/bin/cli.js --mode production --config webpack.prod.config.js",