diff --git a/setup.py b/setup.py
old mode 100755
new mode 100644
index 1cc5d53..5b7a119
--- a/setup.py
+++ b/setup.py
@@ -40,7 +40,7 @@ def read(fname):
             'celery==3.1.13',
             'redis==2.10.1',
             'MySQL-python==1.2.5',
-            'lxml==3.3.5',
+            'lxml==4.9.1',
             'subprocess32==3.2.6',
             'netaddr==0.7.18'
         ]