diff --git a/fsl/version.py b/fsl/version.py
index 92f45cf1f79c15c66701e4a9ccbf6569c8dbf24e..2d132cc27265103423506a2f915bf53634511d03 100644
--- a/fsl/version.py
+++ b/fsl/version.py
@@ -41,7 +41,7 @@ import            re
 import            string
 
 
-__version__ = '1.9.0.dev0'
+__version__ = '1.10.0.dev0'
 """Current version number, as a string. """