diff --git a/requirements.txt b/requirements.txt
index 51bf8d2..b5c7a3d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -51,7 +51,7 @@ Keras==2.2.4
 Keras-Applications==1.0.8
 Keras-Preprocessing==1.1.0
 kiwisolver==1.1.0
-lxml==4.6.3
+lxml==4.6.5
 Markdown==3.1.1
 MarkupSafe==1.1.1
 matplotlib==3.0.2