diff --git a/setup.py b/setup.py
index f40a536..81a1401 100644
--- a/setup.py
+++ b/setup.py
@@ -3,7 +3,7 @@
 with open('README.md', 'r') as fh:
     README = fh.read()
 
-VERSION = '0.1.3.8'
+VERSION = '0.1.3.9'
 
 setuptools.setup(
     name='causal-learn',