diff --git a/pyproject.toml b/pyproject.toml
index b5c5131..597a6f3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -43,7 +43,7 @@ test = [
     "pytest==8.3.3",
     "pytest-asyncio==0.24.0",
     "pytest-cov==5.0.0",
-    "langchain_google_vertexai==1.0.10"
+    "langchain_google_vertexai==2.0.8"
 ]
 
 [build-system]