diff --git a/setup.py b/setup.py
index 75fbfd0..c98c84a 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 setup(
     name='blaze2',
-    version='2.2.0',
+    version='2.2.1',
     author='Yupei You',
     author_email="youyupei@gmail.com",
     description='Barcode identification from Long reads for AnalyZing single cell gene Expression',