diff --git a/setup.cfg b/setup.cfg
index d196214..3b79695 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -79,7 +79,7 @@ test_extra =
     curio
     matplotlib!=3.2.0
     nbformat
-    numpy>=1.20
+    numpy>=1.21
     pandas
     trio
 all =