diff --git a/bower.json b/bower.json
index 695d5dc..e8bb71d 100644
--- a/bower.json
+++ b/bower.json
@@ -2,9 +2,9 @@
   "name": "core-menu",
   "private": true,
   "dependencies": {
-    "core-selector": "Polymer/core-selector#master",
-    "core-collapse": "Polymer/core-collapse#master",
-    "core-a11y-keys": "Polymer/core-a11y-keys#master",
-    "core-item": "Polymer/core-item#master"
+    "core-selector": "Polymer/core-selector#^0.5",
+    "core-collapse": "Polymer/core-collapse#^0.5",
+    "core-a11y-keys": "Polymer/core-a11y-keys#^0.5",
+    "core-item": "Polymer/core-item#^0.5"
   }
-}
+}
\ No newline at end of file