diff --git a/lib/python/pyflyby/_version.py b/lib/python/pyflyby/_version.py
index 6f12809f..25a81ade 100644
--- a/lib/python/pyflyby/_version.py
+++ b/lib/python/pyflyby/_version.py
@@ -4,4 +4,4 @@
 # http://creativecommons.org/publicdomain/zero/1.0/
 
 
-__version__ = "1.9.9"
+__version__ = "1.9.10"