diff --git a/flask_web/requirements.txt b/flask_web/requirements.txt
index e43cb64..bd3a497 100644
--- a/flask_web/requirements.txt
+++ b/flask_web/requirements.txt
@@ -9,7 +9,7 @@ gunicorn==19.9.0
 itsdangerous==1.1.0
 Jinja2==2.10
 MarkupSafe==1.1.0
-numpy==1.12.1
+numpy==1.21.0
 pkg-resources==0.0.0
 python-dateutil==2.8.0
 rpi-ws281x==4.1.0