diff --git a/requirements.txt b/requirements.txt
index e9176b4..213fc8c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,3 +9,4 @@ cssselect~=1.1.0
 tqdm~=4.61.1
 tenacity~=7.0.0
 Flask~=2.2.0
+gunicorn~=20.1.0