diff --git a/requirements.txt b/requirements.txt
index 29d5c59..a1f5ce1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ idna==2.5
 itsdangerous==0.24
 jieba3k==0.35.1
 Jinja2==2.9.6
-lxml==3.8.0
+lxml==4.6.5
 MarkupSafe==1.0
 newspaper3k==0.2.2
 nltk==3.2.4