diff --git a/requirements.txt b/requirements.txt
index 2055447..1dd558e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ django-taggit==0.18.3
 django-treebeard==4.0.1
 djangorestframework==3.4.0
 html5lib==0.999999
-numpy==1.9.2
+numpy==1.21.0
 oauthlib==1.1.2
 python-dateutil==2.4.2
 python-openid==2.2.5