diff --git a/build-tests/localization-plugin-test-01/package.json b/build-tests/localization-plugin-test-01/package.json
index 9442ded7400..3c5b8d9f2ae 100644
--- a/build-tests/localization-plugin-test-01/package.json
+++ b/build-tests/localization-plugin-test-01/package.json
@@ -14,12 +14,12 @@
     "@rushstack/node-core-library": "workspace:*",
     "@rushstack/set-webpack-public-path-plugin": "workspace:*",
     "@types/webpack-env": "1.13.0",
-    "html-webpack-plugin": "~4.5.0",
-    "ts-loader": "6.0.0",
+    "html-webpack-plugin": "~5.0.0",
+    "ts-loader": "8.0.14",
     "typescript": "~3.9.7",
-    "webpack": "~4.44.2",
+    "webpack": "~5.0.0",
     "webpack-bundle-analyzer": "~3.6.0",
-    "webpack-cli": "~3.3.2",
+    "webpack-cli": "~4.0.0",
     "webpack-dev-server": "~3.11.0"
   }
 }