diff --git a/pyproject.toml b/pyproject.toml
index f04858f..29fa54f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,7 @@ dependencies = [
     # Web Framework
     "fastapi>=0.119.0",
     "uvicorn[standard]>=0.37.0",
-    "python-multipart>=0.0.22",
+    "python-multipart>=0.0.26",
     # AWS SDK
     "boto3>=1.42.16",
     "botocore>=1.42.16",
diff --git a/uv.lock b/uv.lock
index 9419635..0b2f3ab 100644
--- a/uv.lock
+++ b/uv.lock
@@ -250,7 +250,7 @@ requires-dist = [
     { name = "pytest-mock", marker = "extra == 'dev'", specifier = ">=3.12.0" },
     { name = "python-dotenv", specifier = ">=1.0.0" },
     { name = "python-jose", extras = ["cryptography"], specifier = ">=3.3.0" },
-    { name = "python-multipart", specifier = ">=0.0.22" },
+    { name = "python-multipart", specifier = ">=0.0.26" },
     { name = "routellm", marker = "extra == 'smart-routing'", specifier = ">=0.1.0" },
     { name = "ruff", marker = "extra == 'dev'", specifier = ">=0.3.0" },
     { name = "sentry-sdk", extras = ["fastapi"], marker = "extra == 'monitoring'", specifier = ">=1.40.0" },
@@ -360,6 +360,7 @@ dependencies = [
     { name = "jmespath" },
     { name = "s3transfer" },
 ]
+sdist = { url = "https://files.pythonhosted.org/packages/f1/13/33c8b8704d677fcaf5555ba8c6cc39468fc7b9a0c6b6c496e008cd5557fc/boto3-1.42.76.tar.gz", hash = "sha256:aa2b1973eee8973a9475d24bb579b1dee7176595338d4e4f7880b5c6189b8814", size = 112789, upload-time = "2026-03-25T19:33:25.985Z" }
 wheels = [
     { url = "https://files.pythonhosted.org/packages/f0/dc/21b3dfb135125eb7e3a46b9aab0aede847726f239fc8f39474742a87ebb0/boto3-1.42.76-py3-none-any.whl", hash = "sha256:63c6779c814847016b89ae1b72ed968f8a63d80e589ba337511aa6fc1b59585e", size = 140557, upload-time = "2026-03-25T19:33:23.289Z" },
 ]
@@ -2743,11 +2744,11 @@ cryptography = [
 
 [[package]]
 name = "python-multipart"
-version = "0.0.22"
+version = "0.0.26"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/94/01/979e98d542a70714b0cb2b6728ed0b7c46792b695e3eaec3e20711271ca3/python_multipart-0.0.22.tar.gz", hash = "sha256:7340bef99a7e0032613f56dc36027b959fd3b30a787ed62d310e951f7c3a3a58", size = 37612, upload-time = "2026-01-25T10:15:56.219Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/88/71/b145a380824a960ebd60e1014256dbb7d2253f2316ff2d73dfd8928ec2c3/python_multipart-0.0.26.tar.gz", hash = "sha256:08fadc45918cd615e26846437f50c5d6d23304da32c341f289a617127b081f17", size = 43501, upload-time = "2026-04-10T14:09:59.473Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/1b/d0/397f9626e711ff749a95d96b7af99b9c566a9bb5129b8e4c10fc4d100304/python_multipart-0.0.22-py3-none-any.whl", hash = "sha256:2b2cd894c83d21bf49d702499531c7bafd057d730c201782048f7945d82de155", size = 24579, upload-time = "2026-01-25T10:15:54.811Z" },
+    { url = "https://files.pythonhosted.org/packages/9a/22/f1925cdda983ab66fc8ec6ec8014b959262747e58bdca26a4e3d1da29d56/python_multipart-0.0.26-py3-none-any.whl", hash = "sha256:c0b169f8c4484c13b0dcf2ef0ec3a4adb255c4b7d18d8e420477d2b1dd03f185", size = 28847, upload-time = "2026-04-10T14:09:58.131Z" },
 ]
 
 [[package]]