diff --git a/docs/contents/articles/051-sidebar/index.md b/docs/contents/articles/051-sidebar/index.md
index 8a883056..7704b6d9 100644
--- a/docs/contents/articles/051-sidebar/index.md
+++ b/docs/contents/articles/051-sidebar/index.md
@@ -55,4 +55,4 @@ You also can define a list of sub-menu items like this:
 
 ## Routes configuration
 
-Routes configuration is specified in the Page Components according to Angular 2 Router specification. More information you can find [here](https://angular.io/docs/ts/latest/guide/router.html).
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+Routes configuration is specified in the Page Components according to Angular 2 Router specification. More information you can find [here](https://angular.io/docs/ts/latest/guide/router-deprecated.html).
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