diff --git a/CHANGELOG.md b/CHANGELOG.md
index 47237e1a..009ab806 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,11 @@ will consitute of a breaking change warranting a new major release:
 
 # [unreleased]
 
+## Fixed
+
+- Fixed wrong dimension of a matrix within the `MEKF`, which would lead to a seg fault, if the
+  star tracker was available.
+
 # [v7.7.0] 2024-02-29
 
 - Bumped `eive-tmtc` to v6.1.0