diff --git a/requirements.txt b/requirements.txt
index 857cdb68..e45a67bc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@
 #
 acme==0.22.2
 alembic-autogenerate-enums==0.0.2
-alembic==0.9.8            # via flask-migrate
+alembic==0.9.9            # via flask-migrate
 aniso8601==3.0.0          # via flask-restful
 arrow==0.12.0
 asn1crypto==0.24.0        # via cryptography