diff --git a/pyproject.toml b/pyproject.toml
index 317c7b2..3a41875 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,7 +10,7 @@ dependencies = [
     "requests~=2.31",
     "ruamel-yaml~=0.17",
     "bitstring~=4.1",
-    "lxml~=4.9",
+    "lxml~=5.1",
     "peewee~=3.16",
     "mysqlclient~=2.1",
     "udm-rest-client~=1.2",