diff --git a/mat_discover/__init__.py b/mat_discover/__init__.py
index d9c44ce..8c33350 100644
--- a/mat_discover/__init__.py
+++ b/mat_discover/__init__.py
@@ -1,2 +1,2 @@
 """Data-driven materials discovery based on composition."""
-__version__ = "2.2.0"
+__version__ = "2.2.1"