diff --git a/requirements.txt b/requirements.txt
index 6190280..3b84442 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ chardet==3.0.4
 colorama==0.4.1
 docutils==0.14
 idna==2.8
-lxml==4.3.2
+lxml==4.6.5
 pkginfo==1.5.0.1
 psutil==5.6.0
 Pygments==2.3.1