diff --git a/smart_open/version.py b/smart_open/version.py
index 59f7aab6..d89c8024 100644
--- a/smart_open/version.py
+++ b/smart_open/version.py
@@ -1,4 +1,4 @@
-__version__ = '7.1.0'
+__version__ = '7.1.0.dev0'
 
 
 if __name__ == '__main__':