diff --git a/requirements.txt b/requirements.txt
index ebd60d0..4d174f6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -66,7 +66,7 @@ MarkupSafe==1.1.1
 matplotlib==3.3.0
 msgpack==1.0.0
 nexmo==2.4.0
-numpy==1.19.1
+numpy==1.22.0
 oauth2client==3.0.0
 oauthlib==3.1.0
 packaging==20.4