diff --git a/src/api/errors.py b/src/api/errors.py
index 5b4a99a..c6f8da8 100644
--- a/src/api/errors.py
+++ b/src/api/errors.py
@@ -97,7 +97,7 @@ def register_exception_handlers(app: FastAPI) -> None:
     @app.exception_handler(RequestValidationError)
     def _validation_handler(request: Request, exc: RequestValidationError) -> JSONResponse:
         return JSONResponse(
-            status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
+            status_code=status.HTTP_422_UNPROCESSABLE_CONTENT,
             content=_envelope(
                 "validation_error",
                 "request validation failed",