diff --git a/requirements.all.txt b/requirements.all.txt
index 37ad01a..5810098 100644
--- a/requirements.all.txt
+++ b/requirements.all.txt
@@ -37,7 +37,7 @@ iso8601==0.1.12
 itsdangerous==0.24
 jedi==0.11.1
 Jinja2==2.11.3
-lxml==4.6.3
+lxml==4.6.5
 Mako==1.0.7
 MarkupSafe==1.0
 multidict==4.1.0