diff --git a/requirements.txt b/requirements.txt
index b2efe37..0246b48 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -111,7 +111,7 @@ lazy-object-proxy==1.4.3
 libarchive-c==2.8
 llvmlite==0.31.0
 locket==0.2.0
-lxml==4.4.2
+lxml==4.6.2
 Markdown==3.1.1
 MarkupSafe==1.1.1
 matplotlib==3.1.2