diff --git a/requirements-dev.txt b/requirements-dev.txt
index d360cb2..e187271 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,4 +1,4 @@
 -r requirements.txt
-black==25.1.0
+black==25.9.0
 flake8==7.3.0
 pre-commit==4.2.0