diff --git a/requirements.txt b/requirements.txt
index c158fb3..25da0e9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 Flask==1.0.2
 Flask-SocketIO==3.3.2
 Jinja2==2.11.2
-MarkupSafe==1.1.1
+MarkupSafe==2.0.1
 Werkzeug==0.15.3
 argparse==1.4.0
 eventlet==0.24.1
diff --git a/requirements2.txt b/requirements2.txt
index 866344e..e8b502f 100644
--- a/requirements2.txt
+++ b/requirements2.txt
@@ -1,7 +1,7 @@
 Flask==1.0.2
 Flask-SocketIO==3.3.2
 Jinja2==2.11.2
-MarkupSafe==1.1.1
+MarkupSafe==2.0.1
 Werkzeug==0.15.3
 argparse==1.4.0
 eventlet==0.24.1