diff --git a/pyproject.toml b/pyproject.toml
index 2f730758..1a948dba 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,11 +46,11 @@ test = [
     "bs4==0.0.2",
     "flake8==6.1.0",
     "isort==5.13.2",
-    "mypy==1.17.0",
+    "mypy==1.17.1",
     "pytest==8.4.1",
     "pytest-asyncio==0.26.0",
     "pytest-cov==5.0.0",
-    "langchain_google_vertexai==2.0.27"
+    "langchain_google_vertexai==2.0.28"
 ]
 
 [build-system]
diff --git a/requirements.txt b/requirements.txt
index 02a1e008..194070bd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-google-cloud-spanner==3.55.0
-langchain-core==0.3.71
+google-cloud-spanner==3.56.0
+langchain-core==0.3.74
 langchain-community==0.3.27
 pydantic==2.11.7