diff --git a/requirements.txt b/requirements.txt
index ec2414f..dd605ce 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -28,7 +28,7 @@ kiwisolver==1.2.0
 lazy-object-proxy==1.4.3
 librosa==0.7.2
 llvmlite==0.32.0
-lxml==4.5.0
+lxml==4.6.5
 Markdown==3.1.1
 matplotlib==3.2.1
 mccabe==0.6.1