diff --git a/docker/Dockerfile b/docker/Dockerfile
index 6b2fe01..399c2fc 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM gcr.io/deeplearning-platform-release/base-cu110
+FROM gcr.io/deeplearning-platform-release/base-cu110@sha256:9717d641903840e9fc9b697190b0048d36e957f54e5c18eeb67a3fdfebd6c5b8
 
 COPY buzzwords/ buzzwords/