diff --git a/pyproject.toml b/pyproject.toml
index 74bd24c..a14eed9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,7 +39,7 @@ Changelog = "https://github.com/googleapis/langchain-google-firestore-python/blo
 test = [
     "black[jupyter]==26.3.1",
     "isort==8.0.0",
-    "mypy==1.17.1",
+    "mypy==2.3.1",
     "pytest-asyncio==1.1.0",
     "pytest==8.4.1",
     "pytest-cov==7.0.0"