diff --git a/packages/react-devtools-extensions/package.json b/packages/react-devtools-extensions/package.json
index 4d9692897a7ab..128163f8f080d 100644
--- a/packages/react-devtools-extensions/package.json
+++ b/packages/react-devtools-extensions/package.json
@@ -32,17 +32,17 @@
     "child-process-promise": "^2.2.1",
     "chrome-launch": "^1.1.4",
     "crx": "^5.0.0",
-    "css-loader": "^1.0.1",
+    "css-loader": "^4.0.0",
     "firefox-profile": "^1.0.2",
     "node-libs-browser": "0.5.3",
     "nullthrows": "^1.0.0",
     "open": "^7.0.2",
     "os-name": "^3.1.0",
-    "raw-loader": "^3.1.0",
-    "style-loader": "^0.23.1",
+    "raw-loader": "^4.0.1",
+    "style-loader": "^1.1.4",
     "web-ext": "^7.1.1",
-    "webpack": "^4.43.0",
-    "webpack-cli": "^3.3.11",
+    "webpack": "^5.0.0",
+    "webpack-cli": "^4.0.0",
     "webpack-dev-server": "^3.10.3"
   },
   "dependencies": {