diff --git a/requirements.txt b/requirements.txt
index 89598a9..12b8420 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ certifi==2019.11.28
 chardet==3.0.4
 idna==2.8
 jsonpickle==1.2
-lxml==4.4.2
+lxml==4.9.1
 more-itertools==8.0.2
 packaging==19.2
 pluggy==0.13.1