diff --git a/bower.json b/bower.json
index 041f74f..36e2029 100644
--- a/bower.json
+++ b/bower.json
@@ -2,6 +2,7 @@
   "name": "core-ajax",
   "private": true,
   "dependencies": {
-    "polymer": "Polymer/polymer#master"
-  }
+    "polymer": "Polymer/polymer#0.2.3"
+  },
+  "version": "0.2.3"
 }
\ No newline at end of file