diff --git a/requirements.txt b/requirements.txt
index d9c8da9..b6995df 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ h11==0.9.0
 httptools==0.1.1
 idna==2.9
 importlib-metadata==1.6.0
-lxml==4.5.0
+lxml==4.9.1
 more-itertools==8.2.0
 multidict==4.7.5
 packaging==20.3