diff --git a/ch06/requirements.txt b/ch06/requirements.txt
index bbb3403..d4515f5 100644
--- a/ch06/requirements.txt
+++ b/ch06/requirements.txt
@@ -1,5 +1,5 @@
 keras==2.1.6
-tensorflow==1.8.0
+tensorflow==2.7.2
 h5py==2.7.1
 nltk==3.2.5
 sklearn==0.0