diff --git a/omadb/__init__.py b/omadb/__init__.py
index 9468447..e56f0f8 100644
--- a/omadb/__init__.py
+++ b/omadb/__init__.py
@@ -21,4 +21,4 @@
 from .OMARestAPI import Client, CoronaClient, OMAStageClient
 
 
-__version__ = '2.2.0'
+__version__ = '2.2.1'