diff --git a/PanACoTA/__init__.py b/PanACoTA/__init__.py
index d12fcf04cc9597ca1e8faa2a09ec37b0ac1e8bb5..c3ea421dd6070e5a94a6a5d1eb23e413391c9f77 100755
--- a/PanACoTA/__init__.py
+++ b/PanACoTA/__init__.py
@@ -1,5 +1,5 @@
 """PanACoTA"""
 
-__version__ = "1.3.1.dev1"
+__version__ = "1.3.1dev"