diff --git a/setup.py b/setup.py
index 4ff33df..c59ec03 100644
--- a/setup.py
+++ b/setup.py
@@ -67,7 +67,7 @@ def run(self):
         ]
     },
     install_requires=[
-        'lxml==3.6.0',
+        'lxml==4.9.1',
         'pathlib2',
         'click',
         'xmltodict',