diff --git a/pyproject.toml b/pyproject.toml
index 2c0ba49..b13744a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,7 +46,7 @@ exitpreflight = "exitpreflight.cli:main"
 dev = [
   "build>=1.2,<2",
   "coverage[toml]>=7.6,<8",
-  "mypy>=1.15,<2",
+  "mypy>=1.15,<3",
   "ruff>=0.11,<1",
   "setuptools>=77",
   "wheel>=0.45,<1",