diff --git a/python/setup.cfg b/python/setup.cfg
index 4ffd3dc94..7bc72b4db 100644
--- a/python/setup.cfg
+++ b/python/setup.cfg
@@ -22,6 +22,7 @@ install_requires =
     h3<4.0,>=3.7
     ipython<8.11,>=7.4.2
     keplergl==0.3.2
+    numpy<2.0,>=1.21.5
 
 [options.package_data]
 mosaic =