diff --git a/example/package.json b/example/package.json
old mode 100755
new mode 100644
index 70d18f7..3757bde
--- a/example/package.json
+++ b/example/package.json
@@ -10,7 +10,7 @@
     "colors": "^1.2.1",
     "cookie-parser": "~1.4.3",
     "debug": "^4.1.0",
-    "express": "^4.13.4",
+    "express": "^4.19.2",
     "morgan": "^1.9.1",
     "node-my-info-sg": "../",
     "pug": "^2.0.0-rc.4",