diff --git a/requirements.txt b/requirements.txt
index 3d34f53..a408f85 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,7 +25,7 @@ jqdatasdk==1.7.7
 kiwisolver==1.1.0
 kombu==4.6.6
 librabbitmq==2.0.0
-lxml==4.4.2
+lxml==4.9.1
 MarkupPy==1.14
 matplotlib==3.1.2
 monotonic==1.5
diff --git a/whls/requirements.txt b/whls/requirements.txt
index 3d34f53..a408f85 100644
--- a/whls/requirements.txt
+++ b/whls/requirements.txt
@@ -25,7 +25,7 @@ jqdatasdk==1.7.7
 kiwisolver==1.1.0
 kombu==4.6.6
 librabbitmq==2.0.0
-lxml==4.4.2
+lxml==4.9.1
 MarkupPy==1.14
 matplotlib==3.1.2
 monotonic==1.5