diff --git a/app.py b/app.py
index 674533d..4b34e47 100644
--- a/app.py
+++ b/app.py
@@ -150,4 +150,5 @@ interface = gr.Interface(
     article=article,
     allow_flagging='never',
     cache_examples=False,
+    delete_cache=(4000, 4000),
     ).queue().launch(show_error=True)