diff --git a/package.json b/package.json
index b8610af77..4aa670624 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
     "@angular/core": "^4.0.0",
     "@angular/forms": "^4.0.0",
     "@angular/http": "^4.0.0",
-    "@angular/material": "^2.0.0-beta.4",
+    "@angular/material": "^2.0.0-beta.5",
     "@angular/platform-browser": "^4.0.0",
     "@angular/platform-browser-dynamic": "^4.0.0",
     "@angular/router": "~4.0.0",
diff --git a/src/app/examples/example-module.ts b/src/app/examples/example-module.ts
index 9c1b974af..82d098e59 100644
--- a/src/app/examples/example-module.ts
+++ b/src/app/examples/example-module.ts
@@ -75,8 +75,8 @@ import {SelectFormExample} from './select-form/select-form-example';
 export interface LiveExample {
   title: string;
   component: any;
-  additionalFiles: string[];
-  selectorName: string;
+  additionalFiles?: string[];
+  selectorName?: string;
 }
 
 /**