diff --git a/requirements_saml.txt b/requirements_saml.txt
index 5215ea38..ce9173a1 100644
--- a/requirements_saml.txt
+++ b/requirements_saml.txt
@@ -1,3 +1,3 @@
-lxml==4.9.4
+lxml==5.1.0
 python3-saml==1.16.0
 xmlsec==1.3.13