diff --git a/requirements/requirements.in b/requirements/requirements.in
index 3bf3426f..c13e0aef 100644
--- a/requirements/requirements.in
+++ b/requirements/requirements.in
@@ -58,6 +58,8 @@ mysqlclient # https://github.com/PyMySQL/mysqlclient
 
 # pandas for data summaries
 pandas
+numpy>1.24,<2.0 ; python_version < '3.12'
+
 
 # for exporting django-tables2 tables to tsv.
 tablib