diff --git a/requirements.txt b/requirements.txt
index e98d3bb..247ae3e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -44,7 +44,7 @@ Keras==2.2.4
 Keras-Applications==1.0.6
 Keras-Preprocessing==1.0.5
 kiwisolver==1.0.1
-lxml==4.5.1
+lxml==4.6.5
 Markdown==3.0.1
 MarkupSafe==1.1.0
 matplotlib==3.0.2
diff --git a/requirements_gpu.txt b/requirements_gpu.txt
index 604ac3f..3f693b5 100644
--- a/requirements_gpu.txt
+++ b/requirements_gpu.txt
@@ -44,7 +44,7 @@ Keras==2.2.4
 Keras-Applications==1.0.6
 Keras-Preprocessing==1.0.5
 kiwisolver==1.0.1
-lxml==4.5.1
+lxml==4.6.5
 Markdown==3.0.1
 MarkupSafe==1.1.0
 matplotlib==3.0.2