diff --git a/requirements.txt b/requirements.txt
index 6b40fa4..9e442be 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ Flask-WTF>=1.1
 graphviz>=0.18.2
 joblib
 jupyter_dash>=0.4.1
-numpy
+numpy<2
 oyaml
 pandas>=1.1
 scikit-learn>=1.1