diff --git a/requirements-dev.txt b/requirements-dev.txt
index 1dd8ef1f885c..4fc9bcb024ef 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -14,5 +14,5 @@ parameterized>=0.7.0
 prompt-toolkit==1.0.14
 click==6.7
 inflection==0.3.1
-lxml==4.2.3
+lxml==4.9.1
 beautifulsoup4==4.6.0