diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0a8b599..450d1a1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 ### Added
 ### Changed
+- Update swagger-ui version to 3.23.11 [#239](https://github.com/rswag/rswag/pull/239)
 ### Deprecated
 ### Removed
 ### Fixed
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index c22b355..a1b9b5b 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -44,6 +44,19 @@ Push to your fork and [submit a Pull Request][pr].
 
 [pr]: https://github.com/rswag/rswag/compare/
 
+## Updating Swagger UI
+
+Find the latest versions of swagger-ui here:  
+https://github.com/swagger-api/swagger-ui/releases
+
+Update the swagger-ui-dist version in the rswag-ui dependencies
+```  
+./rswag-ui/package.json
+```
+
+Navigate to the rswag-ui folder and run npm install to update the package-lock.json
+
+
 ## Release
 (for maintainers)