diff --git a/src/gh/diffCheck/setup.py b/src/gh/diffCheck/setup.py
index b2d7ea09..298ad4a4 100644
--- a/src/gh/diffCheck/setup.py
+++ b/src/gh/diffCheck/setup.py
@@ -4,7 +4,7 @@
 
 setup(
     name="diffCheck",
-    version="2.0.0",
+    version="1.3.1",
     packages=find_packages(),
     install_requires=[
         "numpy",