diff --git a/pyproject.toml b/pyproject.toml
index 83b5161f3..a77a6dc02 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -54,7 +54,7 @@ dev = [
 
 lint = [
     "ruff>=0.14.9,<1",
-    "mypy>=1.18.2,<2",
+    "mypy>=1.18.2,<3",
     "typing-extensions>=4.15.0,<5",
 ]