diff --git a/kirra_qooxdoo/package.json b/kirra_qooxdoo/package.json
index 9c22377..3ad6c5b 100644
--- a/kirra_qooxdoo/package.json
+++ b/kirra_qooxdoo/package.json
@@ -3,6 +3,6 @@
   "version": "0.2.201601",
   "repository" : {},
   "devDependencies": {
-    "grunt": "1.3.0"
+    "grunt": "1.5.2"
   }
 }