diff --git a/gaea-platform/src/requirements.txt b/gaea-platform/src/requirements.txt
index 9524d1b..dffd125 100644
--- a/gaea-platform/src/requirements.txt
+++ b/gaea-platform/src/requirements.txt
@@ -31,7 +31,7 @@ itsdangerous==1.1.0
 Jinja2==2.11.2
 jsonschema==2.6.0
 kubernetes==8.0.2
-lxml==4.5.1
+lxml==4.9.1
 MarkupSafe==1.1.1
 marshmallow==2.14.0
 mongoengine==0.13.0