diff --git a/setup.py b/setup.py
index 8785c06f..5a416fd3 100644
--- a/setup.py
+++ b/setup.py
@@ -12,7 +12,7 @@
                 ],
 
 PACKAGE_NAME = "stimela"
-__version__ = "1.5.2"
+__version__ = "1.5.3.1"
 
 setup(name=PACKAGE_NAME,
       version=__version__,