diff --git a/requirements.txt b/requirements.txt
index 60388da28..5991b1543 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,6 +9,7 @@ psycopg2
 lxml
 pycql==0.0.8
 matplotlib
+numpy<2.0.0
 pyows>=0.2.6
 python-keystoneclient<6.0.0
 python-swiftclient<5.0.0