diff --git a/requirements/requirements.in b/requirements/requirements.in
index 3bf3426f..1fe37ecf 100644
--- a/requirements/requirements.in
+++ b/requirements/requirements.in
@@ -58,6 +58,7 @@ mysqlclient # https://github.com/PyMySQL/mysqlclient
 
 # pandas for data summaries
 pandas
+numpy<2.0
 
 # for exporting django-tables2 tables to tsv.
 tablib