diff --git a/CHANGELOG.md b/CHANGELOG.md
index a8571c3e721f27d97cea76b79a6e7eeb9ceeb1bc..c9bfbe77011496e878d6aacf70ffba6e93125b5d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,6 +22,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed ###
 
+* Bug in applyPOV which led to caosdb-server#154: Queries with "!=" returned
+  the same results as "=" (for references).
+
 ### Security ###
 
 ## [4.1.0] - 2021-06-11 ##