diff --git a/services/api/requirements.txt b/services/api/requirements.txt
old mode 100755
new mode 100644
index 8cfa778..a024cdb
--- a/services/api/requirements.txt
+++ b/services/api/requirements.txt
@@ -4,6 +4,6 @@ Flask-SQLAlchemy==2.4.3
 Flask-Migrate==2.5.3
 Flask-Script==2.0.6
 flasgger==0.9.4
-gunicorn==20.0.4
+gunicorn==22.0.0
 psycopg2==2.8.5
 pylint==2.5.3