diff --git a/bower.json b/bower.json
index dcc4146..bf89ef8 100644
--- a/bower.json
+++ b/bower.json
@@ -2,15 +2,16 @@
   "name": "core-doc-viewer",
   "private": true,
   "dependencies": {
-    "core-ajax": "Polymer/core-ajax#master",
-    "core-menu": "Polymer/core-menu#master",
-    "core-item": "Polymer/core-item#master",
-    "core-toolbar": "Polymer/core-toolbar#master",
-    "core-icons": "Polymer/core-icons#master",
-    "core-icon-button": "Polymer/core-icon-button#master",
-    "core-header-panel": "Polymer/core-header-panel#master",
-    "context-free-parser": "Polymer/context-free-parser#master",
-    "marked-element": "PolymerLabs/marked-element#master",
-    "prettify-element": "Polymer/prettify-element#master"
-  }
-}
+    "core-ajax": "Polymer/core-ajax#^0.5.0",
+    "core-menu": "Polymer/core-menu#^0.5.0",
+    "core-item": "Polymer/core-item#^0.5.0",
+    "core-toolbar": "Polymer/core-toolbar#^0.5.0",
+    "core-icons": "Polymer/core-icons#^0.5.0",
+    "core-icon-button": "Polymer/core-icon-button#^0.5.0",
+    "core-header-panel": "Polymer/core-header-panel#^0.5.0",
+    "context-free-parser": "Polymer/context-free-parser#^0.5.0",
+    "marked-element": "PolymerLabs/marked-element#^0.5.0",
+    "prettify-element": "Polymer/prettify-element#^0.5.0"
+  },
+  "version": "0.5.1"
+}
\ No newline at end of file