diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 218393f..4cff5b9 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.4.1"
+  ".": "0.4.2"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d8db030..11436fd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.4.2](https://github.com/IBM/simrun/compare/v0.4.1...v0.4.2) (2026-06-25)
+
+
+### Bug Fixes
+
+* **ci:** update cosign command to remove registry referrers mode ([#20](https://github.com/IBM/simrun/issues/20)) ([a07cd69](https://github.com/IBM/simrun/commit/a07cd694e5e3e2536f7235d1b8af7487f7c65c10))
+
 ## [0.4.1](https://github.com/IBM/simrun/compare/v0.4.0...v0.4.1) (2026-06-25)