diff --git a/docker/docker-compose.yml b/docker/docker-compose.yml
index d75ac14..c401d9b 100644
--- a/docker/docker-compose.yml
+++ b/docker/docker-compose.yml
@@ -18,6 +18,7 @@ services:
       - "10002:7860"
     environment:
       - GRADIO_SERVER_NAME=0.0.0.0
+      - GRADIO_TEMP_DIR=/tmp/gradio
       - MINERU_API_BASE=http://mineru-nginx:8000
       - MINERU_MODEL_SOURCE=${MINERU_MODEL_SOURCE:-huggingface}
       - HF_HUB_CACHE=${HF_HUB_CACHE:-/opt/models/huggingface}
diff --git a/docker/scripts/mineru_webui.py b/docker/scripts/mineru_webui.py
index 2f5f762..b70ec27 100644
--- a/docker/scripts/mineru_webui.py
+++ b/docker/scripts/mineru_webui.py
@@ -100,8 +100,16 @@ async def process_pdf(file_obj, backend, lang, progress=gr.Progress()):
         return "Please upload a PDF file.", "", ""
 
     tmp_dir = tempfile.mkdtemp(prefix="mineru-client-")
-    file_path = file_obj.name if hasattr(file_obj, "name") else os.path.join(tmp_dir, "input.pdf")
-    file_name = os.path.basename(file_path)
+
+    # 兼容不同 Gradio 版本的 file 返回值
+    if isinstance(file_obj, str):
+        file_path = file_obj
+        file_name = os.path.basename(file_path)
+    elif hasattr(file_obj, 'name'):
+        file_path = file_obj.name
+        file_name = os.path.basename(file_path)
+    else:
+        return "Unsupported file object type", "", ""
 
     async with httpx.AsyncClient(timeout=httpx.Timeout(120)) as client:
         # 1. 探测 API