diff --git a/pyproject.toml b/pyproject.toml
index b6e9f3f..0dc6535 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,7 +27,7 @@ dependencies = [
     "pdoc3>=0.11.6",
     "pytest-cov>=7.1.0,<8",
     "twine>=4,<7",
-    "black>=26.3.1,<27",
+    "black>=26.5.1,<27",
     "idna>=3.16"
 ]
 classifiers = [