diff --git a/experimental/hello-prism/app/package.json b/experimental/hello-prism/app/package.json
old mode 100755
new mode 100644
index ef612a2..d29a8b3
--- a/experimental/hello-prism/app/package.json
+++ b/experimental/hello-prism/app/package.json
@@ -8,7 +8,7 @@
   "dependencies": {
     "body-parser": "~1.13.2",
     "cookie-parser": "~1.3.5",
-    "debug": "~2.2.0",
+    "debug": "~4.1.1",
     "express": "~4.13.1",
     "jade": "~1.11.0",
     "morgan": "~1.6.1",