diff --git a/bower.json b/bower.json
index a54bb4e..541607b 100644
--- a/bower.json
+++ b/bower.json
@@ -1,8 +1,8 @@
-{
-  "name": "core-component-page",
-  "private": true,
-  "dependencies": {
-    "platform": "Polymer/platform#master",
-    "polymer": "Polymer/polymer#master"
-  }
-}
+{
+  "name": "core-component-page",
+  "private": true,
+  "dependencies": {
+    "platform": "Polymer/platform#>=0.3.0 <1.0.0",
+    "polymer": "Polymer/polymer#>=0.3.0 <1.0.0"
+  }
+}
\ No newline at end of file