diff --git a/fsl/version.py b/fsl/version.py
index a257dc531bfda253c8d44cecd4ea9a2db9d49076..d727163a04b40256540114f418eaf6ef7211f1e8 100644
--- a/fsl/version.py
+++ b/fsl/version.py
@@ -47,7 +47,7 @@ import            re
 import            string
 
 
-__version__ = '1.12.0'
+__version__ = '2.0.0.dev0'
 """Current version number, as a string. """