diff --git a/requirements.txt b/requirements.txt
index 9792fee..fbfa60a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ beautifulsoup4==4.9.1
 certifi==2020.6.20
 chardet==3.0.4
 idna==2.10
-lxml==4.5.2
+lxml==4.9.1
 numpy==1.19.0
 pandas==1.0.5
 pkg-resources==0.0.0