diff --git a/cli/scripts/nginx/Dockerfile.cacher b/cli/scripts/nginx/Dockerfile.cacher
index aedf629ad1f9d..a882b2d02a7b4 100644
--- a/cli/scripts/nginx/Dockerfile.cacher
+++ b/cli/scripts/nginx/Dockerfile.cacher
@@ -1,4 +1,4 @@
-FROM ubuntu:xenial
+FROM ubuntu:xenial-20210114
 
 RUN apt-get update \
   && apt-get install -y --no-install-recommends \