diff --git a/python/obitools3/version.py b/python/obitools3/version.py
index d2e77c8..7b1ad20 100644
--- a/python/obitools3/version.py
+++ b/python/obitools3/version.py
@@ -1,5 +1,5 @@
-major = 1
-minor = 1
-serial= '16'
+major = 0
+minor = 0
+serial= '0'
 
 version ="%d.%02d.%s" % (major,minor,serial)