diff --git a/pyproject.toml b/pyproject.toml
index 946020d..7804e3c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ dependencies = [
 
 [project.optional-dependencies]
 dev = [
-    "black==25.11.0",
+    "black==25.12.0",
     "build==1.3.0",
     "mypy==1.19.1",
     "pylint==4.0.4",