diff --git a/06_appview/package.json b/06_appview/package.json
index 57f7341..d7167e6 100644
--- a/06_appview/package.json
+++ b/06_appview/package.json
@@ -16,7 +16,7 @@
     "body-parser": "^1.12.0",
     "compression": "^1.4.1",
     "express": "^4.12.0",
-    "handlebars": "^2.0.0",
+    "handlebars": "^4.5.3",
     "jquery": "^2.1.3",
     "morgan": "^1.5.1",
     "rendr": "^1.0.1",