diff --git a/deps/npm/node_modules/diff/package.json b/deps/npm/node_modules/diff/package.json
index a2fc30c581218f..2f9fc772cfaedd 100644
--- a/deps/npm/node_modules/diff/package.json
+++ b/deps/npm/node_modules/diff/package.json
@@ -81,7 +81,7 @@
     "rollup-plugin-babel": "^4.2.0",
     "semver": "^7.3.2",
     "webpack": "^4.28.3",
-    "webpack-dev-server": "^3.1.14"
+    "webpack-dev-server": "^4.0.0"
   },
   "optionalDependencies": {}
 }