diff --git a/ckeditor5/node_modules/webpack/node_modules/terser-webpack-plugin/package.json b/ckeditor5/node_modules/webpack/node_modules/terser-webpack-plugin/package.json
index 2f7d571..cad18fd 100644
--- a/ckeditor5/node_modules/webpack/node_modules/terser-webpack-plugin/package.json
+++ b/ckeditor5/node_modules/webpack/node_modules/terser-webpack-plugin/package.json
@@ -42,7 +42,7 @@
     "is-wsl": "^1.1.0",
     "schema-utils": "^1.0.0",
     "serialize-javascript": "^4.0.0",
-    "source-map": "^0.6.1",
+    "source-map": "^0.7.6",
     "terser": "^4.1.2",
     "webpack-sources": "^1.4.0",
     "worker-farm": "^1.7.0"