diff --git a/pyproject.toml b/pyproject.toml
index acf9353..7447990 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,7 +22,7 @@ dev = [
     "pytest>=9.0",
     "pytest-timeout>=2.4.0",
     "pytest-asyncio>=1.3.0",
-    "black>=25.1",
+    "black>=26.5.0",
     "ruff>=0.15.10",
     "httpx>=0.28.1",
     "pip-audit>=2.10.0",