diff --git a/requirements.txt b/requirements.txt
index 46b2a3c..f57987a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,7 +31,7 @@ httpie==0.9.2
 httplib2==0.9.1
 jieba==0.35
 kombu==3.0.35
-lxml==3.3.5
+lxml==4.9.1
 mistune==0.3.1
 mongoengine==0.10.6
 newspaper==0.0.9.8
@@ -94,7 +94,7 @@ httpie==0.9.2
 httplib2==0.9.1
 jieba==0.35
 kombu==3.0.35
-lxml==3.3.5
+lxml==4.9.1
 mistune==0.3.1
 mongoengine==0.10.6
 newspaper==0.0.9.8