diff --git a/README.md b/README.md
index 61961d5..88ba1cf 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,8 @@
+Note: This release of this particular component requires an **older version of Polymer (v0.5.5)**.
+
+-----
+
 The organization of these web component files is tuned for the component's
 inclusion in other projects via [Bower](http://bower.io). If you'd like to run
 this component's demo on your own machine, please see these
-[instructions](https://github.com/basic-web-components/components-dev/wiki/Running-Basic-Web-Component-demos).
\ No newline at end of file
+[instructions](https://github.com/basic-web-components/components-dev/wiki/Running-Basic-Web-Component-demos).
diff --git a/basic-selector.html b/basic-selector.html
index cb3bc27..2ffd361 100644
--- a/basic-selector.html
+++ b/basic-selector.html
@@ -19,11 +19,11 @@
 -->
 
 <link rel="import" href="../core-selector/core-selector.html">
-<link rel="import" href="../basic-element/basic-element.html">
+<script src="../basic-helpers/BasicContentHelpers.js"></script>
 
 <polymer-element name="basic-selector" extends="core-selector">
 <script>
-Polymer( Platform.mixin( BasicWebComponents, {
+Polymer( Platform.mixin({
 
   // Override the base applySelection implementation to also update the
   // aria-selected attribute at the same time.
@@ -34,7 +34,7 @@
 
   attached: function() {
     this.super();
-    this._basicAttached();
+    this.observeContentChanges();
   },
 
   contentChanged: function() {
@@ -57,6 +57,11 @@
     }
   },
 
+  detached: function() {
+    this.super();
+    this.observeContentChanges(false);
+  },
+
   excludedLocalNames: "template",
 
   /**
@@ -92,6 +97,6 @@
     item.setAttribute( "aria-selected", selected );
   }
 
-}));
+}, BasicContentHelpers));
 </script>
 </polymer-element>
diff --git a/bower.json b/bower.json
index 89c37ea..acdf2c4 100644
--- a/bower.json
+++ b/bower.json
@@ -1,15 +1,15 @@
 {
   "name": "basic-selector",
   "description": "Extends core-selector to support reprojected content",
-  "version": "0.0.1",
+  "version": "0.5.0",
   "license": "MIT",
   "main": "basic-selector.html",
   "dependencies": {
-    "basic-element": "basic-web-components/basic-element#master",
-    "core-selector": "Polymer/core-selector#master"
+    "basic-helpers": "basic-web-components/basic-helpers#^0.5.0",
+    "core-selector": "Polymer/core-selector#^0.5.5"
   },
   "devDependencies": {
-    "basic-framed-content": "basic-web-components/basic-framed-content#master"
+    "basic-framed-content": "basic-web-components/basic-framed-content#^0.5.0"
   },
   "keywords": [
     "basic-web-components",