diff --git a/doc/changelog.rst b/doc/changelog.rst
index ace9d9914..e5ac26082 100644
--- a/doc/changelog.rst
+++ b/doc/changelog.rst
@@ -5,6 +5,10 @@
 Changelog
 =========
 
+2.15.1 (July 28, 2022)
+----------------------
+- Fix pickling of all builtin cost functions (`#773 <https://github.com/scikit-hep/iminuit/pull/773>`_)
+
 2.15.0 (July 27, 2022)
 ----------------------
 - Smart sampling (`#769 <https://github.com/scikit-hep/iminuit/pull/769>`_)
diff --git a/src/iminuit/version.py b/src/iminuit/version.py
index ef9c8ff3c..86f14d877 100644
--- a/src/iminuit/version.py
+++ b/src/iminuit/version.py
@@ -8,7 +8,7 @@
 # - During development, add suffix .devN with N >= 0
 # - For release candidates, add suffix .rcN with N >= 0
 # - For beta releases, add suffix .betaN with N >= 0
-version = "2.15.0"
+version = "2.15.1"
 
 # We list the corresponding ROOT version of the C++ Minuit2 library here
 root_version = "v6-25-02-1013-ga4bb8f3342"