diff --git a/requirements.txt b/requirements.txt
--- a/requirements.txt
+++ b/requirements.txt
@@ -104,7 +104,7 @@ nbformat==4.4.0
 jupyter_client==5.0.0
 
 ## cli tools
-alembic==0.9.8
+alembic==0.9.9
 invoke==0.13.0
 bumpversion==0.5.3