diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index bd7bea3f7..d71ef975e 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 2.2.0
+current_version = 2.2.1
 files = strax/__init__.py docs/source/conf.py
 commit = True
 tag = True
diff --git a/HISTORY.md b/HISTORY.md
index d8e7062c9..89ecdfd2a 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,3 +1,13 @@
+2.2.1 / 2025-07-18
+---------------------
+* Check the `data_type` of returned chunk of plugin by @dachengx in https://github.com/AxFoundation/strax/pull/995
+* Topological level and shortest dependency path of dependency tree (directed acyclic graph) by @dachengx in https://github.com/AxFoundation/strax/pull/996
+* Do not assign `_multi_output_topics` when the topic is from a loader by @dachengx in https://github.com/AxFoundation/strax/pull/997
+
+**Full Changelog**: https://github.com/AxFoundation/strax/compare/v2.2.0...v2.2.1
+
+
+
 2.2.0 / 2025-05-16
 ---------------------
 * Fix a corner case where the chunk size is zero by @dachengx in https://github.com/AxFoundation/strax/pull/988
diff --git a/docs/source/conf.py b/docs/source/conf.py
index adf90a91a..0b875c57e 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -66,9 +66,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = "2.2.0"
+version = "2.2.1"
 # The full version, including alpha/beta/rc tags.
-release = "2.2.0"
+release = "2.2.1"
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/pyproject.toml b/pyproject.toml
index 33f4e7ed5..aaff2b085 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [tool]
 [tool.poetry]
 name = "strax"
-version = "2.2.0"
+version = "2.2.1"
 description = "Streaming analysis for xenon TPCs"
 readme = "README.md"
 authors = [
diff --git a/strax/__init__.py b/strax/__init__.py
index f01ea05fa..93aa904ff 100644
--- a/strax/__init__.py
+++ b/strax/__init__.py
@@ -1,5 +1,5 @@
 # flake8: noqa
-__version__ = "2.2.0"
+__version__ = "2.2.1"
 
 # Glue the package together
 # See https://www.youtube.com/watch?v=0oTh1CXRaQ0 if this confuses you