diff --git a/requirements.txt b/requirements.txt
index dfcd07c..cc588e6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ chardet==3.0.4
 Click==7.0
 cssselect==1.0.3
 idna==2.8
-lxml==4.3.3
+lxml==4.6.3
 numpy==1.16.4
 pandas==0.24.2
 pyquery==1.4.0