diff --git a/requirements.txt b/requirements.txt
index a8692b3..e334be2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,7 +19,7 @@ gpiozero==1.2.0
 html5lib==0.999
 itsdangerous==0.24
 mcpi==0.1.1
-numpy==1.8.2
+numpy==1.21.0
 peewee==2.8.1
 pgzero==1.1
 picamera==1.10