diff --git a/ietf/__init__.py b/ietf/__init__.py
index 528908810..4d59aaa3a 100644
--- a/ietf/__init__.py
+++ b/ietf/__init__.py
@@ -5,7 +5,7 @@
 from . import checks                           # pyflakes:ignore
 
 # Don't add patch number here:
-__version__ = "7.39.1.dev3"
+__version__ = "7.39.1.dev4"
 
 # set this to ".p1", ".p2", etc. after patching
 __patch__   = ""