diff --git a/paddle_quantum/__init__.py b/paddle_quantum/__init__.py
index 97b90c381fc596761b5f96ecbae8ae1ee9fc89d9..6bb1d03cae1b553f2b4080735406c61b6caf4f66 100644
--- a/paddle_quantum/__init__.py
+++ b/paddle_quantum/__init__.py
@@ -17,4 +17,4 @@ Paddle Quantum Library
 """
 
 name = "paddle_quantum"
-__version__ = "2.1.0"
+__version__ = "2.1.1"