diff --git a/pyproject.toml b/pyproject.toml
index 6fa3d320..a5e9f3ad 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -43,7 +43,7 @@ langgraph = [
 test = [
     "black[jupyter]==26.1.0",
     "isort==8.0.0",
-    "mypy==1.19.1",
+    "mypy==2.0.0",
     "pytest-asyncio==0.26.0",
     "pytest==8.4.2",
     "pytest-cov==7.0.0",