diff --git a/pyproject.toml b/pyproject.toml
index 47a9dd5..9624c8d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -42,7 +42,7 @@ dev = [
     "pytest-timeout>=2.1",
     "pytest-mock>=3.14",
     "pytest-asyncio>=1.0",
-    "black>=24.0",
+    "black>=26.3.1",
     "ruff>=0.4",
     "mypy>=1.10",
     "types-PyYAML>=6.0.12",