diff --git a/requirements.txt b/requirements.txt
index 389ea81..f6db4b0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -54,7 +54,7 @@ idna==2.5
 ipython==6.1.0
 ipython-genutils==0.2.0
 jedi==0.10.2
-lxml==3.8.0
+lxml==4.6.2
 oauth2client==4.1.2
 oauthlib==2.0.2
 pexpect==4.2.1