diff --git a/pyproject.toml b/pyproject.toml
index be6b72f..6b5af7c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,7 +27,7 @@ classifiers = [
 ]
 dependencies = [
     'netCDF4!=1.7.4',
-    'numpy>=1.14.0',
+    'numpy>=1.14.0,<2.5.0',
     'beautifulsoup4',
     'requests',
     'packaging',