diff --git a/gns3server/version.py b/gns3server/version.py
index 33fc9800..28370cef 100644
--- a/gns3server/version.py
+++ b/gns3server/version.py
@@ -23,8 +23,8 @@
 # or negative for a release candidate or beta (after the base version
 # number has been incremented)
 
-__version__ = "2.1.19"
-__version_info__ = (2, 1, 19, 0)
+__version__ = "2.1.20dev1"
+__version_info__ = (2, 1, 20, 99)
 
 # If it's a git checkout try to add the commit
 if "dev" in __version__: