diff --git a/test/support/express4/package.json b/test/support/express4/package.json
index f1db45c..a577a3e 100644
--- a/test/support/express4/package.json
+++ b/test/support/express4/package.json
@@ -9,7 +9,7 @@
     "body-parser": "~1.18.3",
     "cookie-parser": "~1.4.3",
     "debug": "~3.1.0",
-    "express": "~4.16.3",
+    "express": "~5.1.0",
     "morgan": "~1.9.0",
     "pug": "~2.0.3",
     "serve-favicon": "~2.5.0"