diff --git a/Chapter01/requirements.txt b/Chapter01/requirements.txt
index da415bb..e7317da 100644
--- a/Chapter01/requirements.txt
+++ b/Chapter01/requirements.txt
@@ -1,5 +1,5 @@
 pandas==0.23.4
-numpy==1.16.2
+numpy==1.22.0
 scikit-learn==0.20.3
 tensorflow==1.13.2
 keras==2.3.1