diff --git a/requirements.txt b/requirements.txt
index a318a625..45a9e172 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 pyTooling ~= 6.4
 ruamel.yaml ~= 0.18.6
-lxml ~= 5.2
+lxml ~= 5.3
diff --git a/tests/requirements.txt b/tests/requirements.txt
index 61663b59..a402af11 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -10,4 +10,4 @@ pytest-cov ~= 5.0
 # Static Type Checking
 mypy ~= 1.10
 typing_extensions ~= 4.12
-lxml ~= 5.2
+lxml ~= 5.3