diff --git a/CHANGELOG.md b/CHANGELOG.md
index fb206ad21..25a137167 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 **Note**: Numbers like (\#123) point to closed Pull Requests on the fractal-tasks-core repository.
 
-# Unreleased
+# 1.2.1
 * Core-library
     * Add `create_roi_table_from_df_list` library function in `fractal_tasks_core.v1.roi`: It combines a list of ROI table dataframes into an AnnData ROI table and handles repeating labels (\#811).
     * Move `create_well_acquisition_dict` & `_split_well_path_image_path` from fractal_tasks_core.tasks._registration_utils.py & fractal_tasks_core.tasks._zarr_utils into fractal_tasks_core.utils (\#811).