diff --git a/requirements.txt b/requirements.txt
index e92bf02..f3e274e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ falcon==2.0.0
 gunicorn==20.0.4
 html-table-parser==0.1.0
 idna==2.9
-lxml==4.6.2
+lxml==4.6.3
 numpy==1.18.1
 pandas==1.0.1
 pydialogflow-fulfillment==0.1.3