diff --git a/setup.cfg b/setup.cfg
index 2ffc9ec..812296c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -37,7 +37,7 @@ test =
 
 # for development
 dev =
-    black==22.3.0
+    black==26.3.1
     flake8>=3.6.0
     flake8-black==0.3.2
     flake8-isort>=4.0.0