diff --git a/setup.py b/setup.py
index cb28724032..ebd5f696e5 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@
 general_requirements = [
     'dpath >= 1.5.0, < 2.0.0',
     'pytest >= 4.4.1, < 6.0.0',  # For openfisca test
-    'numpy >= 1.11, < 1.21',
+    'numpy >= 1.20, < 1.21',
     'psutil >= 5.4.7, < 6.0.0',
     'PyYAML >= 3.10',
     'sortedcontainers == 2.2.2',