diff --git a/requirements.txt b/requirements.txt
index ee1fc7a..bea3908 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ bs4==0.0.1
 chardet==3.0.4
 idna==2.8
 idna-ssl==1.1.0
-lxml==4.3.4
+lxml==4.9.1
 nose==1.3.7
 multidict==4.5.2
 soupsieve==1.9.2