diff --git a/requirements.txt b/requirements.txt
index 8ffe446..854a4c2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ idna==2.7
 itsdangerous==0.24
 jieba3k==0.35.1
 Jinja2==2.10
-lxml==4.2.2
+lxml==4.6.5
 MarkupSafe==1.0
 newspaper3k==0.2.6
 nltk==3.3