diff --git a/flexget/_version.py b/flexget/_version.py
index d290b79f82..beb83a2af3 100644
--- a/flexget/_version.py
+++ b/flexget/_version.py
@@ -7,4 +7,4 @@
 The jenkins release job will automatically strip the .dev for release,
 and update the version again for continued development.
 """
-__version__ = '2.21.17'
+__version__ = '2.21.18.dev'