diff --git a/pyproject.toml b/pyproject.toml
index 56a5459..e81f019 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -87,7 +87,7 @@ dependencies = [
 ]
 optional-dependencies.develop = [
   "black<25",
-  "mypy<1.16",
+  "mypy<1.17",
   "poethepoet<1",
   "pyproject-fmt<3",
   "ruff<0.10",