diff --git a/pyproject.toml b/pyproject.toml
index c97ce02..6e66692 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,7 @@ dev = [
   "jsonschema[format]>=4.25,<5",
   "mkdocs>=1.6,<2",
   "mkdocs-material>=9.6,<10",
-  "mypy>=1.17,<2",
+  "mypy>=1.17,<3",
   "pytest>=8.4,<9",
   "pytest-asyncio>=1.1,<2",
   "pytest-cov>=6.2,<8",