diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index 86d2a41..79618ff 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -13,7 +13,7 @@ dependencies = [
   "fastapi>=0.115,<1.0",
   "numpy>=2.1,<3.0",
   "opencv-python-headless>=4.10,<5.0",
-  "pydantic-settings>=2.6,<3.0",
+  "pydantic-settings>=2.13.1,<3.0",
   "python-multipart>=0.0.12,<1.0",
   "uvicorn[standard]>=0.32,<1.0",
 ]