CHANGELOG.md in openbd_api-0.4.0 vs CHANGELOG.md in openbd_api-0.4.1

@@ -1,4 +1,8 @@
+## 0.4.1
+
+- fix require
+
 ## 0.4.0
 
 - Change Architecture. need to create `Client` instance.
 - Add `OpenBD::Client`
 - Add `OpenBD::Responses::BaseResoponse`