diff --git a/modules/restricted-guests/synapse/setup.cfg b/modules/restricted-guests/synapse/setup.cfg
index 75fead2..425ccd4 100644
--- a/modules/restricted-guests/synapse/setup.cfg
+++ b/modules/restricted-guests/synapse/setup.cfg
@@ -34,7 +34,7 @@ dev =
   mypy == 1.10.0
   pydantic == 2.4.2
   # for linting
-  black == 22.3.0
+  black ==25.9.0
   flake8 == 4.0.1
   isort == 5.9.3