diff --git a/requirements.txt b/requirements.txt
index 3bfd554..f3e5d2f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-lxml==4.8.0
+lxml==4.9.1
 pytest==7.1.2
 pytest-cov==3.0.0
 python-dateutil==2.8.2