diff --git a/requirements.txt b/requirements.txt
index 93a9de17..aefc0fba 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,3 +8,4 @@ drmaa
 tabulate<0.9.0
 pulp<2.8
 smart_open<7.0.0
+numpy<2.0.0