diff --git a/requirements.txt b/requirements.txt
index 842080fb3..69fea37e9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ SQLAlchemy!=1.1.5,!=1.1.6,!=1.1.7,!=1.1.8,>=1.0.10 # MIT
 alembic>=0.8.10 # MIT
 neutron-lib>=1.6.0 # Apache-2.0
 oslo.config>=3.22.0 # Apache-2.0
-oslo.db>=4.19.0 # Apache-2.0
+oslo.db>=4.21.1 # Apache-2.0
 oslo.i18n!=3.15.2,>=2.1.0 # Apache-2.0
 oslo.log>=3.22.0 # Apache-2.0
 oslo.reports>=0.6.0 # Apache-2.0