diff --git a/requirements.txt b/requirements.txt
index 98368e8..fec5c2c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ feedparser==5.2.1
 idna==2.8
 iocextract==1.13.1
 jieba3k==0.35.1
-lxml==4.3.4
+lxml==4.9.1
 newspaper3k==0.2.8
 nltk==3.4.5
 numpy==1.17.4