diff --git a/requirements-gpu-py36.txt b/requirements-gpu-py36.txt
index f71086b..4f77a28 100644
--- a/requirements-gpu-py36.txt
+++ b/requirements-gpu-py36.txt
@@ -27,7 +27,7 @@ jupyter-nbextensions-configurator==0.4.0
 Keras-Applications==1.0.6
 Keras-Preprocessing==1.0.5
 kiwisolver==1.0.1
-lxml==4.2.5
+lxml==4.6.3
 Markdown==3.0.1
 MarkupSafe==1.0
 matplotlib==3.0.0
diff --git a/requirements-py36.txt b/requirements-py36.txt
index 0a7b527..b87c316 100644
--- a/requirements-py36.txt
+++ b/requirements-py36.txt
@@ -34,7 +34,7 @@ Keras==2.2.4
 Keras-Applications==1.0.6
 Keras-Preprocessing==1.0.5
 kiwisolver==1.0.1
-lxml==4.2.5
+lxml==4.6.3
 Markdown==3.0.1
 MarkupSafe==1.0
 matplotlib==3.0.0