diff --git a/gns3server/version.py b/gns3server/version.py
index 483ed64d..f8a1e039 100644
--- a/gns3server/version.py
+++ b/gns3server/version.py
@@ -23,7 +23,7 @@
 # or negative for a release candidate or beta (after the base version
 # number has been incremented)
 
-__version__ = "2.1.0rc1"
+__version__ = "2.1.0dev6"
 __version_info__ = (2, 1, 0, -99)
 
 # If it's a git checkout try to add the commit