diff --git a/requirements.txt b/requirements.txt
index c960cec..4bb4939 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ h5py==2.10.0
 idna==2.10
 Keras-Preprocessing==1.1.2
 kiwisolver==1.2.0
-lxml==4.5.0
+lxml==4.6.3
 Markdown==3.2.2
 matplotlib==3.2.1
 numpy==1.18.4