diff --git a/requirements.txt b/requirements.txt
index 0c68fe491..242047892 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 Pygments==2.2.0
 argparse==1.4.0
 cssselect==1.0.3
-lxml==4.2.5
+lxml==4.9.1
 pyquery==1.4.0
 requests==2.20.1
 cachelib==0.1