diff --git a/setup.py b/setup.py
index a70e629..64afe2d 100644
--- a/setup.py
+++ b/setup.py
@@ -26,7 +26,7 @@
     test_suite='tests',
     install_requires=[
         'robobrowser==0.5.3',
-        'lxml==3.6.4',
+        'lxml==4.6.5',
     ],
     tests_require=[
         'vcrpy==1.10.5',