diff --git a/requirements.txt b/requirements.txt
index 2308bfe..d7007cd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ certifi==2020.4.5.1
 chardet==3.0.4
 idna==2.9
 kombu==4.6.8
-lxml==4.5.0
+lxml==4.9.1
 numpy==1.18.3
 pandas==1.0.3
 python-dateutil==2.8.1