diff --git a/CHANGELOG.md b/CHANGELOG.md
index 84c31fbe..da8b2a66 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 All notable changes to this project will be documented in this file.
 
+## [2.11.1] - 2024-04-25
+
+### Fixed
+- Fixed a bug in error computation when combining two Obs from the same ensemble and fluctuations on one replicum are not part of one of the Obs.
+
+
 ## [2.11.0] - 2024-04-01
 ### Added
 - New special function module.
diff --git a/pyerrors/version.py b/pyerrors/version.py
index 5f6c80fd..200c2363 100644
--- a/pyerrors/version.py
+++ b/pyerrors/version.py
@@ -1 +1 @@
-__version__ = "2.12.0-dev"
+__version__ = "2.11.1"