diff --git a/example/koa/package.json b/example/koa/package.json
old mode 100755
new mode 100644
index 38b2e41..798716c
--- a/example/koa/package.json
+++ b/example/koa/package.json
@@ -12,7 +12,7 @@
     "i18next": "23.5.1",
     "i18next-fs-backend": "2.2.0",
     "i18next-http-middleware": "3.4.0",
-    "koa": "2.14.2",
+    "koa": "2.15.4",
     "koa-body": "6.0.1",
     "koa-mount": "4.0.0",
     "koa-static": "5.0.0"