diff --git a/requirements.in b/requirements.in
index 8104d3f6..230860ab 100644
--- a/requirements.in
+++ b/requirements.in
@@ -13,7 +13,7 @@ Django>=4.2
 djangorestframework>=3.10.3,<3.17
 importlib-metadata==8.7.0
 jsonschema==4.23.0
-lxml==5.3.1
+lxml==5.4.0
 marshmallow==3.26.1
 pydantic==2.11.2
 pyOpenSSL==25.0.0
diff --git a/requirements.txt b/requirements.txt
index c03e1b68..bc6f7d90 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -38,7 +38,7 @@ jsonschema==4.23.0
     # via -r requirements.in
 jsonschema-specifications==2023.12.1
     # via jsonschema
-lxml==5.3.1
+lxml==5.4.0
     # via
     #   -r requirements.in
     #   signxml
diff --git a/src/tests/test_libs_xml_utils.py b/src/tests/test_libs_xml_utils.py
index e2aa359f..5c6fd295 100644
--- a/src/tests/test_libs_xml_utils.py
+++ b/src/tests/test_libs_xml_utils.py
@@ -60,7 +60,7 @@ def test_attack_billion_laughs_1(self) -> None:
             (
                 "XML syntax error."
                 " Maximum entity amplification factor exceeded, see xmlCtxtSetMaxAmplification.,"
-                " line 1, column 25.",
+                " line 1, column 7.",
             ),
         )