diff --git a/requirements.txt b/requirements.txt
index 8c44342..4738772 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 # install CNNumpy as top-level editable package.
 -e . 
-numpy==1.18.5
+numpy==1.22.0
 torch==1.5.0
 scikit-learn==0.23.1
 scipy==1.4.1