diff --git a/requirements.txt b/requirements.txt
index 189eed1..280236c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,7 +19,7 @@ graphenelib==0.6.1
 idna==2.7
 isort==4.3.4
 lazy-object-proxy==1.3.1
-lxml==4.2.4
+lxml==4.6.5
 mccabe==0.6.1
 more-itertools==4.3.0
 mypy-extensions==0.4.1