diff --git a/setup.py b/setup.py
index caeca1ca..970e066d 100644
--- a/setup.py
+++ b/setup.py
@@ -82,7 +82,7 @@
 
 # See the distutils docs...
 setup(name='ImageD11',
-      version='1.9.0',
+      version='1.9.0-beta',
       author='Jon Wright',
       author_email='wright@esrf.fr',
       description='ImageD11',