diff --git a/node_modules/diff/package.json b/node_modules/diff/package.json
index 4ff484e883..0555f41f42 100644
--- a/node_modules/diff/package.json
+++ b/node_modules/diff/package.json
@@ -61,7 +61,7 @@
     "karma-mocha-reporter": "^2.0.0",
     "karma-sauce-launcher": "^2.0.2",
     "karma-sourcemap-loader": "^0.3.6",
-    "karma-webpack": "^3.0.5",
+    "karma-webpack": "^5.0.0",
     "mocha": "^5.2.0",
     "rollup": "^1.0.2",
     "rollup-plugin-babel": "^4.2.0",