diff --git a/pyproject.toml b/pyproject.toml
index 560b5cd..78f276d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,7 @@ maintainers = [
 dependencies = [
   "gunicorn==21.2.0",
   "alembic==1.12.0",
-  "psycopg2==2.9.6",
+  "psycopg2==2.9.9",
   "mysqlclient==2.2.0",
   "slack-bolt==1.18.0",
   "thefuzz==0.19.0",