diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index a07f6a6..6cd6e74
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,4 @@ Flask
 beautifulsoup4
 requests
 pandas
-gunicorn==19.6.0
+gunicorn==22.0.0