diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2724ae49..bb791f55 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,14 @@
 # CHANGELOG
 
 
+## v2.12.2 (2025-06-05)
+
+### Bug Fixes
+
+- **waveform**: Safeguard for history data access, closes #571; removed return values "none"
+  ([`8570538`](https://github.com/bec-project/bec_widgets/commit/85705383e4aff2f83f76d342db0a13380aeca42f))
+
+
 ## v2.12.1 (2025-06-05)
 
 ### Bug Fixes
diff --git a/pyproject.toml b/pyproject.toml
index f01463ce..ff597450 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "bec_widgets"
-version = "2.12.1"
+version = "2.12.2"
 description = "BEC Widgets"
 requires-python = ">=3.10"
 classifiers = [