diff --git a/requirements.txt b/requirements.txt
index 5b8908d..31e9868 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ chardet==3.0.4
 cycler==0.10.0
 idna==2.10
 kiwisolver==1.2.0
-lxml==4.5.2
+lxml==4.6.5
 matplotlib==3.3.0
 numpy==1.19.1
 pandas==1.1.0