diff --git a/operators/vgg16-encoder/requirements.txt b/operators/vgg16-encoder/requirements.txt
index 906d533..d874841 100644
--- a/operators/vgg16-encoder/requirements.txt
+++ b/operators/vgg16-encoder/requirements.txt
@@ -1,4 +1,4 @@
-tensorflow==1.15.2
+tensorflow==2.5.1
 Keras==2.3.1
 grpcio==1.27.2
 pillow