diff --git a/fsl/version.py b/fsl/version.py
index d15f2d69b6baff5ebd4e06679be3bd27b9deaf96..d094aa68f0e67876293c40f359127f5ea32c5995 100644
--- a/fsl/version.py
+++ b/fsl/version.py
@@ -47,7 +47,7 @@ import            re
 import            string
 
 
-__version__ = '3.5.0.dev0'
+__version__ = '3.6.0.dev0'
 """Current version number, as a string. """