diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index cc1810901..5463413ab 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,3 +1,12 @@
+DIALS 3.21.1 (2024-08-23)
+=========================
+
+Bugfixes
+--------
+
+- Stop ``dxtbx.image_average`` shuffling panel positions for segmented detectors. (`#752 <https://github.com/cctbx/dxtbx/issues/752>`_)
+
+
 dxtbx 3.21.0 (2024-08-20)
 =========================
 
diff --git a/newsfragments/752.bugfix b/newsfragments/752.bugfix
deleted file mode 100644
index f01107525..000000000
--- a/newsfragments/752.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Stop ``dxtbx.image_average`` shuffling panel positions for segmented detectors.