diff --git a/youtube_dl/version.py b/youtube_dl/version.py
index 9bf0ea30d..5fb635e40 100644
--- a/youtube_dl/version.py
+++ b/youtube_dl/version.py
@@ -1,3 +1,3 @@
 from __future__ import unicode_literals
 
-__version__ = '2018.07.21'
+__version__ = '2018.07.21-JMW'