diff --git a/skimage/version.py b/skimage/version.py
index d9d6b43c..ab15b0be 100644
--- a/skimage/version.py
+++ b/skimage/version.py
@@ -1,2 +1,2 @@
 # THIS FILE IS GENERATED FROM THE SKIMAGE SETUP.PY
-version='0.5dev'
+version='unbuilt-dev'