diff --git a/requirements.txt b/requirements.txt
index 48b457d1..07b2359d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ flake8==7.1.1
 requests-mock==1.12.1
 Sphinx<9
 sphinx_rtd_theme==2.0.0
-lxml==5.2.2
+lxml==5.3.0
 requests==2.32.3
 xmlschema==3.3.2
 jinja2==3.1.4
diff --git a/setup.py b/setup.py
index 4ecd8b1d..28807de5 100644
--- a/setup.py
+++ b/setup.py
@@ -10,7 +10,7 @@
     changelog = f.read()
 
 requires = [
-    'lxml>=5.2.2',
+    'lxml>=5.3.0',
     'defusedxml',
     'requests',
     'xmlschema'