diff --git a/requirements.txt b/requirements.txt
index 3872d9f..960c872 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,6 @@
 scikit-learn~=1.2.2
-numpy<=1.20.0
+numpy~=1.21.0 ; python_version <= "3.9"
+numpy~=1.26.0 ; python_version > "3.9"
 pandas~=1.4.3
 tabulate
 matplotlib