diff --git a/_sidebar.md b/_sidebar.md
index d6ebc4a..e12af8f 100644
--- a/_sidebar.md
+++ b/_sidebar.md
@@ -1,8 +1,8 @@
 - [Home](home)
 - [Vision document](vision-document)
 - Requirements
-  - [Use-Case Diagram](use-case-diagram)
-  - [Use-Cases](use-cases)
+  - [Use Case Diagram](use-case-diagram)
+  - [Use Cases](use-cases)
   - [Domain Model](domain-model)
   - [Sequence Diagrams](sequence-diagrams)
   - [Wireframe](wireframe)