diff --git a/packages/gatsby/package.json b/packages/gatsby/package.json
index e5564c27a077b..aa7fc173f90fc 100644
--- a/packages/gatsby/package.json
+++ b/packages/gatsby/package.json
@@ -33,7 +33,7 @@
     "convert-hrtime": "^2.0.0",
     "copyfiles": "^1.2.0",
     "core-js": "^2.5.0",
-    "css-loader": "^0.26.1",
+    "css-loader": "^5.0.0",
     "debug": "^2.6.0",
     "del": "^3.0.0",
     "detect-port": "^1.2.1",
@@ -82,9 +82,9 @@
     "path-exists": "^3.0.0",
     "postcss-browser-reporter": "^0.5.0",
     "postcss-cssnext": "^2.8.0",
-    "postcss-import": "^8.2.0",
-    "postcss-loader": "^0.13.0",
-    "postcss-reporter": "^1.4.1",
+    "postcss-import": "^13.0.0",
+    "postcss-loader": "^4.0.0",
+    "postcss-reporter": "^4.0.0",
     "raw-loader": "^0.5.1",
     "react": "^15.6.0",
     "react-dev-utils": "^4.2.1",
@@ -101,7 +101,7 @@
     "sift": "^3.2.6",
     "signal-exit": "^3.0.2",
     "slash": "^1.0.0",
-    "socket.io": "^2.0.3",
+    "socket.io": "^3.0.0",
     "static-site-generator-webpack-plugin": "^3.4.1",
     "string-similarity": "^1.2.0",
     "style-loader": "^0.13.0",