diff --git a/cryptopt/requirements.txt b/cryptopt/requirements.txt
index 04d8934..546c0fc 100644
--- a/cryptopt/requirements.txt
+++ b/cryptopt/requirements.txt
@@ -6,7 +6,7 @@ ipython-genutils==0.2.0
 jsonschema==2.6.0
 jupyter-core==4.4.0
 nbformat==4.4.0
-numpy==1.16.1
+numpy==1.22.0
 pandas==0.24.1
 plotly==3.6.1
 python-dateutil==2.8.0