diff --git a/requirements/common.txt b/requirements/common.txt
index 15381ef1e..998c1b01c 100644
--- a/requirements/common.txt
+++ b/requirements/common.txt
@@ -41,7 +41,7 @@ Jinja2==2.10.1
 jinja2-time==0.2.0
 keepalive==0.5
 kombu==4.6.4
-lxml==4.3.4
+lxml==4.6.2
 Markdown==3.1.1
 MarkupSafe==1.1.1
 nltk==3.4.5