diff --git a/pyproject.toml b/pyproject.toml
index e673bab..fb1f3e7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -90,7 +90,7 @@ optional-dependencies.all = [
   "sqlalchemy-cratedb[vector]",
 ]
 optional-dependencies.develop = [
-  "mypy<1.20",
+  "mypy<2.2",
   "poethepoet<1",
   "pyproject-fmt<3",
   "ruff<0.16",