diff --git a/setup.py b/setup.py
index 9a43b29..905f6a6 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@
 
 setuptools.setup(
     name="tsam",
-    version="2.3.0",
+    version="2.3.1,
     author="Leander Kotzur, Maximilian Hoffmann",
     author_email="leander.kotzur@googlemail.com, max.hoffmann@fz-juelich.de",
     description="Time series aggregation module (tsam) to create typical periods",