diff --git a/lama_cleaner/server.py b/lama_cleaner/server.py
index 5923da7..8e93424 100644
--- a/lama_cleaner/server.py
+++ b/lama_cleaner/server.py
@@ -339,7 +339,7 @@ def run_plugin():
             io.BytesIO(bgr_res),
             mimetype="image/gif",
             as_attachment=True,
-            attachment_filename=form["filename"],
+            download_name=form["filename"],
         )
     if name == InteractiveSeg.name:
         return make_response(
@@ -421,7 +421,7 @@ def switch_model():
 
 @app.route("/")
 def index():
-    return send_file(os.path.join(BUILD_DIR, "index.html"), cache_timeout=0)
+    return send_file(os.path.join(BUILD_DIR, "index.html"))
 
 
 @app.route("/inputimage")
diff --git a/requirements.txt b/requirements.txt
index e19cf3b..deb8aa0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,16 +1,12 @@
 torch>=1.9.0
 opencv-python
+flask==2.2.3
 flask_cors
-Jinja2==2.11.3
-flask==1.1.4
 flaskwebgui==0.3.5
-tqdm
 pydantic
 rich
 loguru
-pytest
 yacs
-markupsafe==2.0.1
 diffusers[torch]==0.14.0
 transformers==4.27.4
 gradio