diff --git a/pyproject.toml b/pyproject.toml
index 2d21437..44cafb5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -57,9 +57,9 @@ dev-flake8 = [
   "pydoclint == 0.8.3",
   "pydocstyle == 6.3.0",
 ]
-dev-formatting = ["black == 25.11.0", "isort == 7.0.0"]
+dev-formatting = ["black == 25.12.0", "isort == 7.0.0"]
 dev-mkdocs = [
-  "black == 25.11.0",
+  "black == 25.12.0",
   "Markdown==3.10",
   "mike == 2.1.3",
   "mkdocs-gen-files == 0.6.0",