diff --git a/pyproject.toml b/pyproject.toml
index 7ca32ee..f19706c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -56,7 +56,7 @@ dependencies = [
 ]
 # Lock file: requirements_dev.txt
 optional-dependencies.dev = [
-	"black == 25.11.0",
+	"black == 25.12.0",
 	"pylint == 4.0.4",
 	"pytest == 9.0.2",
 ]
diff --git a/requirements_dev.txt b/requirements_dev.txt
index 14527b5..f30691f 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,5 +1,5 @@
 astroid == 4.0.2
-black == 25.11.0
+black == 25.12.0
 click == 8.3.1
 colorama == 0.4.6
 dill == 0.4.0