diff --git a/pyproject.toml b/pyproject.toml
index d1a7985..97c42fc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,7 @@ dev = [
   "detect-secrets>=1.5,<2",
   "httpx>=0.28,<1",
   "hypothesis>=6.130,<7",
-  "mypy>=1.15,<2",
+  "mypy>=1.15,<3",
   "pip-audit>=2.8,<3",
   "pytest>=9.0.3,<10",
   "pytest-cov>=6,<7",