diff --git a/tools/notify-service-user-sync/requirements.txt b/tools/notify-service-user-sync/requirements.txt
index 9ab2eff..5e43bf1 100644
--- a/tools/notify-service-user-sync/requirements.txt
+++ b/tools/notify-service-user-sync/requirements.txt
@@ -1,4 +1,4 @@
-black==23.10.1
+black==23.11.0
 coverage==7.3.2
 cryptography==41.0.5
 python-dotenv==1.0.0