diff --git a/fsl/version.py b/fsl/version.py
index 4d8381b9c69a4fe47c727c14fe3cbb762d500563..095ab8c41912ec89d5527c4977ea7375a400c895 100644
--- a/fsl/version.py
+++ b/fsl/version.py
@@ -47,7 +47,7 @@ import            re
 import            string
 
 
-__version__ = '1.11.0.dev0'
+__version__ = '1.12.0.dev0'
 """Current version number, as a string. """