diff --git a/bower.json b/bower.json
index d59cf81..3f49f80 100644
--- a/bower.json
+++ b/bower.json
@@ -2,8 +2,8 @@
   "name": "core-menu",
   "private": true,
   "dependencies": {
-    "core-selector": "Polymer/core-selector#master",
-    "core-collapse": "Polymer/core-collapse#master",
-    "core-item": "Polymer/core-item#master"
+    "core-selector": "Polymer/core-selector#>=0.3.0 <1.0.0",
+    "core-collapse": "Polymer/core-collapse#>=0.3.0 <1.0.0",
+    "core-item": "Polymer/core-item#>=0.3.0 <1.0.0"
   }
-}
+}
\ No newline at end of file