diff --git a/requirements.txt b/requirements.txt
index b62d357..fb0a2d3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ gspread==3.1.0
 httplib2==0.14.0
 idna==2.8
 importlib-metadata==1.1.0
-lxml==4.4.2
+lxml==4.6.2
 more-itertools==8.0.0
 mypy==0.750
 mypy-extensions==0.4.3