diff --git a/lib/requirements.txt b/lib/requirements.txt
index 35436d2..a0a8b47 100644
--- a/lib/requirements.txt
+++ b/lib/requirements.txt
@@ -5,7 +5,7 @@ cycler==0.10.0
 elasticsearch==7.5.1
 joblib==0.14.1
 kiwisolver==1.1.0
-lxml==4.5.0
+lxml==4.6.3
 matplotlib==3.2.0
 numpy==1.18.1
 pandas==1.0.2