diff --git a/Chapter01/requirements.txt b/Chapter01/requirements.txt
index da415bb..169c0c6 100644
--- a/Chapter01/requirements.txt
+++ b/Chapter01/requirements.txt
@@ -1,7 +1,7 @@
 pandas==0.23.4
 numpy==1.16.2
 scikit-learn==0.20.3
-tensorflow==1.13.2
+tensorflow==1.15.4
 keras==2.3.1
 seaborn==0.10.0
 matplotlib==3.2.1