diff --git a/requirements.txt b/requirements.txt
index 09ef6c2..391e26c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -37,7 +37,7 @@ jieba==0.39
 Jinja2==2.11.1
 json5==0.9.1
 kombu==4.1.0
-lxml==4.4.2
+lxml==4.6.3
 MarkupSafe==1.1.1
 multidict==4.7.4
 mysql-connector==2.2.9