diff --git a/package.json b/package.json
index eaed3f6..a667ee7 100644
--- a/package.json
+++ b/package.json
@@ -11,10 +11,10 @@
   "license": "MIT",
   "dependencies": {
     "css-modules-require-hook": "^4.0.6",
-    "express": "^4.15.2",
-    "next": "latest",
-    "react": "^15.4.2",
-    "react-dom": "^15.4.2",
+    "express": "^4.16.0",
+    "next": "4.2.3",
+    "react": "^15.5.4",
+    "react-dom": "^15.5.4",
     "react-toolbox": "^2.0.0-beta.8"
   },
   "devDependencies": {