diff --git a/pyproject.toml b/pyproject.toml
index ea45a109..2150cf01 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,7 +21,7 @@ dependencies = [
     "numpy>=1.24",
     "pandas>=2.0",
     "pyyaml>=6.0",
-    "litellm==1.81.13",
+    "litellm==1.89.3",
     "openai>=1.40.0",
     "claude-agent-sdk>=0.0.14",
     "openai-agents>=0.0.7",
diff --git a/uv.lock b/uv.lock
index 82310d03..6c55d835 100644
--- a/uv.lock
+++ b/uv.lock
@@ -220,7 +220,7 @@ requires-dist = [
     { name = "fastmcp", specifier = ">=2.14.5" },
     { name = "langchain-mcp-adapters", specifier = ">=0.2.2" },
     { name = "langchain-openai", specifier = ">=1.1.0" },
-    { name = "litellm", specifier = "==1.81.13" },
+    { name = "litellm", specifier = "==1.89.3" },
     { name = "mcp", extras = ["cli"], specifier = ">=1.26.0" },
     { name = "numpy", specifier = ">=1.24" },
     { name = "openai", specifier = ">=1.40.0" },
@@ -1618,7 +1618,7 @@ wheels = [
 
 [[package]]
 name = "litellm"
-version = "1.81.13"
+version = "1.89.3"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "aiohttp" },
@@ -1634,9 +1634,9 @@ dependencies = [
     { name = "tiktoken" },
     { name = "tokenizers" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/72/80/b6cb799e7100953d848e106d0575db34c75bc3b57f31f2eefdfb1e23655f/litellm-1.81.13.tar.gz", hash = "sha256:083788d9c94e3371ff1c42e40e0e8198c497772643292a65b1bc91a3b3b537ea", size = 16562861, upload-time = "2026-02-17T02:00:47.466Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/56/f1/f7cfead063f2ab1877c8fb465d0d7fe300b75f081bcb73525f6d550aeb1c/litellm-1.89.3.tar.gz", hash = "sha256:8fcdb2b7a0ef3381d41adf164443842e31ef9f0cd5bcda6fc3c0bd8bc2959510", size = 14080611, upload-time = "2026-06-20T22:42:26.997Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/be/f3/fffb7932870163cea7addc392165647a9a8a5489967de486c854226f1141/litellm-1.81.13-py3-none-any.whl", hash = "sha256:ae4aea2a55e85993f5f6dd36d036519422d24812a1a3e8540d9e987f2d7a4304", size = 14587505, upload-time = "2026-02-17T02:00:44.22Z" },
+    { url = "https://files.pythonhosted.org/packages/d1/f1/34d174ff1d84e459b30f971606ac9cb7078ad24cd7661e9786b25adf7def/litellm-1.89.3-py3-none-any.whl", hash = "sha256:414ef5aee504b2b3eb1b219d39f1c11902db399cbdbc06e5fb550c15d731abeb", size = 15495226, upload-time = "2026-06-20T22:42:23.156Z" },
 ]
 
 [[package]]