diff --git a/durandal/durandal.d.ts b/durandal/durandal.d.ts
index 043ab3f66..e47bb1f15 100644
--- a/durandal/durandal.d.ts
+++ b/durandal/durandal.d.ts
@@ -375,7 +375,7 @@ declare module "durandal/plugins/router" {
       */
     interface IRouteInfoParameters {
         /** your url pattern. The only required parameter */
-        url: string;
+        url: any;
         /** if not supplied, router.convertRouteToName derives it */
         moduleId?: string;
         /** if not supplied, router.convertRouteToModuleId derives it */
diff --git a/knockout/knockout.d.ts b/knockout/knockout.d.ts
index 1e23e868c..63e3ee61d 100644
--- a/knockout/knockout.d.ts
+++ b/knockout/knockout.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for Knockout 2.2
+// Type definitions for Knockout 2.3
 // Project: http://knockoutjs.com
 // Definitions by: Boris Yankov <https://github.com/borisyankov/>
 // Definitions: https://github.com/borisyankov/DefinitelyTyped
@@ -256,6 +256,8 @@ interface KnockoutUtils {
     arrayFilter(array: any[], predicate: (item) => boolean): any[];
 
     arrayPushAll(array: any[], valuesToPush: any[]): any[];
+    
+    arrayPushAll(array: KnockoutObservableArray<any>, valuesToPush: any[]): any[];
 
     extend(target, source);