diff --git a/requirements-dev.txt b/requirements-dev.txt
index f14b0afc4..038e8bab3 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -44,7 +44,7 @@ launchpadlib==1.11.0
 lazr.restfulclient==0.14.6
 lazr.uri==1.0.6
 livereload==2.6.3
-lxml==5.1.0
+lxml==5.2.1
 Markdown==3.5.2
 markdown-it-py==3.0.0
 MarkupSafe==2.1.5
diff --git a/requirements-doc.txt b/requirements-doc.txt
index 4a7e41e2f..05eb32a30 100644
--- a/requirements-doc.txt
+++ b/requirements-doc.txt
@@ -25,7 +25,7 @@ launchpadlib==1.11.0
 lazr.restfulclient==0.14.6
 lazr.uri==1.0.6
 livereload==2.6.3
-lxml==5.1.0
+lxml==5.2.1
 Markdown==3.5.2
 MarkupSafe==2.1.5
 oauthlib==3.2.2