diff --git a/aio/package.json b/aio/package.json
index 5dadb8ecbc..433152698d 100644
--- a/aio/package.json
+++ b/aio/package.json
@@ -66,13 +66,13 @@
   "private": true,
   "dependencies": {
     "@angular/animations": "^5.0.0-beta.3",
-    "@angular/cdk": "2.0.0-beta.11",
+    "@angular/cdk": "2.0.0-beta.12",
     "@angular/common": "^5.0.0-beta.3",
     "@angular/compiler": "^5.0.0-beta.3",
     "@angular/core": "^5.0.0-beta.3",
     "@angular/forms": "^5.0.0-beta.3",
     "@angular/http": "^5.0.0-beta.3",
-    "@angular/material": "2.0.0-beta.11",
+    "@angular/material": "2.0.0-beta.12",
     "@angular/platform-browser": "^5.0.0-beta.3",
     "@angular/platform-browser-dynamic": "^5.0.0-beta.3",
     "@angular/platform-server": "^5.0.0-beta.3",
diff --git a/aio/src/app/app.module.ts b/aio/src/app/app.module.ts
index 70aa8a5637..bb3fb4e360 100644
--- a/aio/src/app/app.module.ts
+++ b/aio/src/app/app.module.ts
@@ -13,10 +13,14 @@ import {
   MatProgressBarModule,
   MatSidenavModule,
   MatTabsModule,
-  MatToolbarModule,
-  Platform
+  MatToolbarModule
 } from '@angular/material';
 
+import {
+  Platform
+} from '@angular/cdk/platform';
+
+
 // Temporary fix for MatSidenavModule issue:
 // crashes with "missing first" operator when SideNav.mode is "over"
 import 'rxjs/add/operator/first';
diff --git a/aio/yarn.lock b/aio/yarn.lock
index 290c1ec7bb..25df18c206 100644
--- a/aio/yarn.lock
+++ b/aio/yarn.lock
@@ -32,9 +32,9 @@
   dependencies:
     tslib "^1.7.1"
 
-"@angular/cdk@2.0.0-beta.11":
-  version "2.0.0-beta.11"
-  resolved "https://registry.yarnpkg.com/@angular/cdk/-/cdk-2.0.0-beta.11.tgz#b9e799574786272c63b6334c837c5ee2445bc933"
+"@angular/cdk@2.0.0-beta.12":
+  version "2.0.0-beta.12"
+  resolved "https://registry.yarnpkg.com/@angular/cdk/-/cdk-2.0.0-beta.12.tgz#3a243cb62b93f4e039120ba70f900dc9e235622e"
   dependencies:
     tslib "^1.7.1"
 
@@ -140,9 +140,9 @@
   dependencies:
     tslib "^1.7.1"
 
-"@angular/material@2.0.0-beta.11":
-  version "2.0.0-beta.11"
-  resolved "https://registry.yarnpkg.com/@angular/material/-/material-2.0.0-beta.11.tgz#9124a1f50f3eb7dc28640317ee1e875f71da753a"
+"@angular/material@2.0.0-beta.12":
+  version "2.0.0-beta.12"
+  resolved "https://registry.yarnpkg.com/@angular/material/-/material-2.0.0-beta.12.tgz#71b6d0b7b021891e5d0e3688c1d4bd78c7457f58"
   dependencies:
     tslib "^1.7.1"