diff --git a/bower.json b/bower.json
index b16964f..ba18a8b 100644
--- a/bower.json
+++ b/bower.json
@@ -17,6 +17,6 @@
         "docs"
     ],
     "dependencies": {
-        "polymer": "Polymer/polymer#>=0.3.5"
+        "polymer": "Polymer/polymer#>=0.4.0"
     }
 }