diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index a5d1cf2..11ee94f 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "2.2.0"
+  ".": "2.2.1"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 55cfaf9..56cb767 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [2.2.1](https://github.com/Alpaq92/TopSecret.ProtectedString/compare/v2.2.0...v2.2.1) (2026-07-11)
+
+
+### Documentation
+
+* **notices:** credit Sun Microsystems as GuardedString copyright holder ([420e4b9](https://github.com/Alpaq92/TopSecret.ProtectedString/commit/420e4b9004ce381d2a3dc1913d0c01c22ab8ff5e))
+
 ## [2.2.0](https://github.com/Alpaq92/TopSecret.ProtectedString/compare/v2.1.1...v2.2.0) (2026-07-06)