diff --git a/pyproject.toml b/pyproject.toml
index 62898ba6..90a5c124 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -140,7 +140,7 @@ dev = [
     "ruff==0.14.7",
     "black==25.12.0",
     "isort==7.0.0",
-    "mypy==1.17.1",
+    "mypy==1.19.1",
     "mypy-protobuf==3.6.0",
     "PyGithub==2.6.0",
     "bump-my-version==1.2.4",