diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index d595a452a..cd5874ff0 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -5,7 +5,7 @@ description = ""
 requires-python = ">=3.12,<4.0"
 dependencies = [
     "fastapi[standard]>=0.116.0",
-    "python-multipart>=0.0.22,<1.0.0",
+    "python-multipart>=0.0.31,<1.0.0",
     "email-validator<3.0.0.0,>=2.1.0.post1",
     "passlib[bcrypt]<2.0.0,>=1.7.4",
     "tenacity<9.0.0,>=8.2.3",
diff --git a/backend/uv.lock b/backend/uv.lock
index 0a2cd5f69..602769f56 100644
--- a/backend/uv.lock
+++ b/backend/uv.lock
@@ -362,7 +362,7 @@ requires-dist = [
     { name = "pydantic-settings", specifier = ">=2.2.1,<3.0.0" },
     { name = "pydub", specifier = ">=0.25.1" },
     { name = "pyjwt", specifier = ">=2.8.0,<3.0.0" },
-    { name = "python-multipart", specifier = ">=0.0.22,<1.0.0" },
+    { name = "python-multipart", specifier = ">=0.0.31,<1.0.0" },
     { name = "redis", specifier = ">=5.0.0,<6.0.0" },
     { name = "sarvamai", specifier = ">=0.1.25" },
     { name = "scikit-learn", specifier = ">=1.7.1" },
@@ -3276,11 +3276,11 @@ wheels = [
 
 [[package]]
 name = "python-multipart"
-version = "0.0.22"
+version = "0.0.31"
 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/64/7e/9b35ad8f3d9ca680f7c87a88f19612fdd8da9796c4d3b46e560ac79dcc4a/python_multipart-0.0.31.tar.gz", hash = "sha256:fc631183bb13e56db3158a4909908dfb2e23565286744e798241e63750e5d680", size = 46689, upload-time = "2026-06-04T08:27:49.014Z" }
 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/5e/1e/7f7f299527a5a8ad90acd5f2f78dfa6c8495c6301a3205106ea68a84de96/python_multipart-0.0.31-py3-none-any.whl", hash = "sha256:8408153d68a9773291fc1da39a8b85a50044bddbabd2dd72e9229776b7b15e28", size = 29996, upload-time = "2026-06-04T08:27:47.804Z" },
 ]
 
 [[package]]