diff --git a/pyproject.toml b/pyproject.toml
index a626215..d81bee7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -97,7 +97,7 @@ all = [
 ]
 develop = [
   "black<25",
-  "mypy<1.11",
+  "mypy<1.12",
   "poethepoet<0.28",
   "pyproject-fmt<2.2",
   "ruff<0.6",