diff --git a/ci/requirements.txt b/ci/requirements.txt
index f5fe877..eff0b80 100644
--- a/ci/requirements.txt
+++ b/ci/requirements.txt
@@ -7,4 +7,4 @@ oss2==2.18.4
 sqlalchemy==2.0.18
 pylibmc==1.6.3
 redis==5.0.8
-lxml==5.3.1
+lxml==6.1.0