diff --git a/pyproject.toml b/pyproject.toml
index 9978108..37485ba 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@ dependencies = [
     "sqlmodel>=0.0.39",
     "langgraph>=0.1.0",
     "langchain-core>=1.5.1",
-    "langchain-google-genai>=1.0.0",
+    "langchain-google-genai>=4.3.1",
     "langfuse>=4.14.1",
     "litellm>=1.93.0",
     "langchain-community>=0.4.2",
diff --git a/uv.lock b/uv.lock
index ebe2c01..579f01d 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1227,7 +1227,7 @@ wheels = [
 
 [[package]]
 name = "langchain-google-genai"
-version = "4.2.7"
+version = "4.3.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "filetype" },
@@ -1235,9 +1235,9 @@ dependencies = [
     { name = "langchain-core" },
     { name = "pydantic" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/1d/0c/bc60dabc362ca7c6ffe8c4bcc2f724c7e566b43eb230cee51419f88f784c/langchain_google_genai-4.2.7.tar.gz", hash = "sha256:03b1463ffe4d42435f43c7870467f2215f684bb46400d2543435d10157c80ac7", size = 281605, upload-time = "2026-07-06T13:51:58.724Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/e2/b7/793ef6c8894f6c6e6946fcf95c59644341e0307f21490b33645fec0ac56d/langchain_google_genai-4.3.1.tar.gz", hash = "sha256:623cd4329f6a3e4e0397ccacc6fa355728362572688ff9a8e522bf21519e9964", size = 285426, upload-time = "2026-07-21T22:14:43.165Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/b2/f9/d73d1e712591723aaddb7a7b1e94978cd2320c29acfe0d26b6169a2f26f0/langchain_google_genai-4.2.7-py3-none-any.whl", hash = "sha256:0d9c388d0e6c629718fca6abb19c6fdca728a9a7873d0324c1ec821288b5b571", size = 70702, upload-time = "2026-07-06T13:51:57.499Z" },
+    { url = "https://files.pythonhosted.org/packages/30/cf/d6c81ba35c27c24af754f36943100b78ddc922594d23d82a9bd8d1334bad/langchain_google_genai-4.3.1-py3-none-any.whl", hash = "sha256:0ebec25bfa62e75a65561b92fde5bdf8d87618bdda9371afe57d6b86bbb9cda8", size = 72170, upload-time = "2026-07-21T22:14:42.032Z" },
 ]
 
 [[package]]
@@ -2384,7 +2384,7 @@ requires-dist = [
     { name = "langchain", specifier = ">=1.3.14" },
     { name = "langchain-community", specifier = ">=0.4.2" },
     { name = "langchain-core", specifier = ">=1.5.1" },
-    { name = "langchain-google-genai", specifier = ">=1.0.0" },
+    { name = "langchain-google-genai", specifier = ">=4.3.1" },
     { name = "langchain-litellm", specifier = ">=0.6.4" },
     { name = "langchain-text-splitters", specifier = ">=0.3.0" },
     { name = "langfuse", specifier = ">=4.14.1" },