diff --git a/python/ndtiff/_version.py b/python/ndtiff/_version.py
index 8c788f9..dc4ad5d 100644
--- a/python/ndtiff/_version.py
+++ b/python/ndtiff/_version.py
@@ -1,2 +1,2 @@
-version_info = (2, 2, 0)
+version_info = (2, 2, 1)
 __version__ = ".".join(map(str, version_info))