diff --git a/pyproject.toml b/pyproject.toml
index 67c641e8..1b31dbae 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -45,7 +45,7 @@ actions = [
 ]
 dev = [
     "flit >=3.2.0,<4.0.0",
-    "mypy >=1.0.0,<1.12",
+    "mypy >=1.0.0,<1.14",
     "pip-audit >=2.4.4,<3.0.0",
     "pylint >=3.0.0,<3.4.0",
     "perflint >=0.8.0,<1.0.0",