diff --git a/Ch3/ch3-requirements.txt b/Ch3/ch3-requirements.txt
index c7fa353..f2df6ce 100644
--- a/Ch3/ch3-requirements.txt
+++ b/Ch3/ch3-requirements.txt
@@ -1,4 +1,4 @@
-numpy==1.19.5
+numpy==1.22.0
 pandas==1.1.5
 scikit-learn==0.21.3
 wget==3.2