diff --git a/package.json b/package.json
index 71d21ef..dce0c84 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "codemirror": "5.20.2",
     "cross-env": "^3.1.3",
     "css-loader": "0.25.0",
-    "express": "4.14.0",
+    "express": "5.0.0-alpha.6",
     "extract-text-webpack-plugin": "1.0.1",
     "findup": "0.1.5",
     "glob": "7.1.1",