diff --git a/fsl/version.py b/fsl/version.py
index 804b6f0d406b3125443e2b02cc502ed151026b86..844d75565a93b2e7ffdd7c5126c4d8bab9a613ce 100644
--- a/fsl/version.py
+++ b/fsl/version.py
@@ -47,7 +47,7 @@ import            re
 import            string
 
 
-__version__ = '3.2.0.dev0'
+__version__ = '3.3.0.dev0'
 """Current version number, as a string. """