diff --git a/packages/router/src/router.ts b/packages/router/src/router.ts
index bf24f9c410..f9635c2e5b 100644
--- a/packages/router/src/router.ts
+++ b/packages/router/src/router.ts
@@ -533,7 +533,7 @@ export class Router {
     let resolve: any = null;
     let reject: any = null;
 
-    const promise = new Promise((res, rej) => {
+    const promise = new Promise<boolean>((res, rej) => {
       resolve = res;
       reject = rej;
     });
diff --git a/packages/router/src/utils/collection.ts b/packages/router/src/utils/collection.ts
index a256f2b64f..a72560ae9b 100644
--- a/packages/router/src/utils/collection.ts
+++ b/packages/router/src/utils/collection.ts
@@ -116,5 +116,5 @@ export function wrapIntoObservable<T>(value: T | NgModuleFactory<T>| Promise<T>|
     return fromPromise(Promise.resolve(value));
   }
 
-  return of (value);
+  return of (value as T);
 }
diff --git a/packages/router/test/config.spec.ts b/packages/router/test/config.spec.ts
index ad643a8fae..9ef3037c69 100644
--- a/packages/router/test/config.spec.ts
+++ b/packages/router/test/config.spec.ts
@@ -45,7 +45,7 @@ describe('config', () => {
       expect(() => {
         validateConfig([
           {path: 'a', component: ComponentA},
-          [{path: 'b', component: ComponentB}, {path: 'c', component: ComponentC}]
+          [{path: 'b', component: ComponentB}, {path: 'c', component: ComponentC}] as any
         ]);
       }).toThrowError(`Invalid configuration of route '': Array cannot be specified`);
     });
diff --git a/packages/router/test/integration.spec.ts b/packages/router/test/integration.spec.ts
index ebccb7bf9f..5c42074f5e 100644
--- a/packages/router/test/integration.spec.ts
+++ b/packages/router/test/integration.spec.ts
@@ -1820,7 +1820,7 @@ describe('Integration', () => {
 
         function delayPromise(delay: number): Promise<boolean> {
           let resolve: (val: boolean) => void;
-          const promise = new Promise(res => resolve = res);
+          const promise = new Promise<boolean>(res => resolve = res);
           setTimeout(() => resolve(true), delay);
           return promise;
         }