diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2b1722be106e566d0b27d404a4e58f4fe36222ec..8ba613daeb2b540eb63badaa31a63d6d71f00e78 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+## [4.2.1](https://gitlab.ics.muni.cz/perun-proxy-aai/simplesamlphp/simplesamlphp-module-cesnet/compare/v4.2.0...v4.2.1) (2023-11-28)
+
+
+### Bug Fixes
+
+* 🐛 Potential Undefined array key in IsEinfrAssured ([36c849a](https://gitlab.ics.muni.cz/perun-proxy-aai/simplesamlphp/simplesamlphp-module-cesnet/commit/36c849a7faa90c4f8fa77cff71ecabbc774edcd9))
+
 # [4.2.0](https://gitlab.ics.muni.cz/perun-proxy-aai/simplesamlphp/simplesamlphp-module-cesnet/compare/v4.1.1...v4.2.0) (2023-06-13)