diff --git a/requirements.txt b/requirements.txt
index 23864b8..5b0a0f3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,7 +29,7 @@ Keras-Applications==1.0.8
 Keras-Preprocessing==1.1.0
 keyboard==0.13.5
 kiwisolver==1.2.0
-lxml==4.6.2
+lxml==4.9.1
 macholib==1.11
 Markdown==3.1.1
 MarkupSafe==1.1.1