diff --git a/requirements.txt b/requirements.txt
index 8620b73..4bb3669 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -76,7 +76,7 @@ jsonschema==3.2.0
     #   libcove
 libcove==0.31.0
     # via lib360dataquality
-lxml==5.4.0
+lxml==6.1.0
     # via flattentool
 odfpy==1.4.1
     # via flattentool
diff --git a/requirements_dev.txt b/requirements_dev.txt
index 614ec4a..75e56e7 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -108,7 +108,7 @@ jsonschema==3.2.0
     #   libcove
 libcove==0.31.0
     # via lib360dataquality
-lxml==5.4.0
+lxml==6.1.0
     # via flattentool
 mccabe==0.7.0
     # via flake8