diff --git a/docs/talk/requirements.txt b/docs/talk/requirements.txt
index b5f50df3..a47f705d 100644
--- a/docs/talk/requirements.txt
+++ b/docs/talk/requirements.txt
@@ -1,7 +1,7 @@
 argh==0.26.2
 docutils==0.14
 hovercraft==2.5
-lxml==4.6.2
+lxml==4.6.5
 pathtools==0.1.2
 Pygments==2.2.0
 PyYAML>=4.2b1