diff --git a/fsl/version.py b/fsl/version.py
index 7243d809453aa15675dcfaacafa8033baf3c4e92..72c1268ab3089914c89a9418c1ef0b0676ae5bbb 100644
--- a/fsl/version.py
+++ b/fsl/version.py
@@ -41,7 +41,7 @@ import            re
 import            string
 
 
-__version__ = '1.0.3.dev'
+__version__ = '1.0.4.dev'
 """Current version number, as a string. """