diff --git a/Dockerfile.cpu b/Dockerfile.cpu
index b6e4f9496..785a36a69 100644
--- a/Dockerfile.cpu
+++ b/Dockerfile.cpu
@@ -1,4 +1,4 @@
-FROM tensorflow/tensorflow:1.12.0-py3
+FROM tensorflow/tensorflow:1.15.0-py3
 
 ENV LANG=C.UTF-8
 RUN mkdir /gpt-2