diff --git a/bower.json b/bower.json
index b935e46..f1ece89 100644
--- a/bower.json
+++ b/bower.json
@@ -2,15 +2,15 @@
   "name": "paper-dropdown-menu",
   "private": false,
   "dependencies": {
-    "polymer": "Polymer/polymer#master",
-    "core-a11y-keys": "Polymer/core-a11y-keys#master",
-    "core-collapse": "Polymer/core-collapse#master",
-    "core-focusable": "Polymer/core-focusable#master",
-    "core-icon": "Polymer/core-icon#master",
-    "core-icons": "Polymer/core-icons#master",
-    "core-menu": "Polymer/core-menu#master",
-    "paper-dropdown": "Polymer/paper-dropdown#master",
-    "paper-item": "Polymer/paper-item#master",
-    "paper-shadow": "Polymer/paper-shadow#master"
+    "polymer": "Polymer/polymer#^0.5",
+    "core-a11y-keys": "Polymer/core-a11y-keys#^0.5",
+    "core-collapse": "Polymer/core-collapse#^0.5",
+    "core-focusable": "Polymer/core-focusable#^0.5",
+    "core-icon": "Polymer/core-icon#^0.5",
+    "core-icons": "Polymer/core-icons#^0.5",
+    "core-menu": "Polymer/core-menu#^0.5",
+    "paper-dropdown": "Polymer/paper-dropdown#^0.5",
+    "paper-item": "Polymer/paper-item#^0.5",
+    "paper-shadow": "Polymer/paper-shadow#^0.5"
   }
-}
+}
\ No newline at end of file