diff --git a/pyproject.toml b/pyproject.toml
index e419af7..1174964 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -63,7 +63,7 @@ dependencies = [
 ]
 
 optional-dependencies.develop = [
-  "mypy<1.12",
+  "mypy<1.15",
   "poethepoet<1",
   "pyproject-fmt<3",
   "ruff<0.9",