diff --git a/setup.py b/setup.py
index 9b34d24..24e4dfb 100644
--- a/setup.py
+++ b/setup.py
@@ -18,7 +18,7 @@
 EMAIL = 'tuoyl@ihep.ac.cn'
 AUTHOR = 'Youli Tuo'
 REQUIRES_PYTHON = '>=3.7.10'
-VERSION = '0.2.7'
+VERSION = '0.2.9'
 
 # What packages are required for this module to be executed?
 REQUIRED = [