diff --git a/Dockerfile b/Dockerfile
index 19690cf..851bcaa 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM nginx:1.13.0
+FROM nginx:1.13
 MAINTAINER Jason Wilder mail@jasonwilder.com
 
 # Install wget and install/updates certificates
diff --git a/Dockerfile.alpine b/Dockerfile.alpine
index 2a4ebf8..1d588d3 100644
--- a/Dockerfile.alpine
+++ b/Dockerfile.alpine
@@ -1,4 +1,4 @@
-FROM nginx:1.13.0-alpine
+FROM nginx:1.13-alpine
 MAINTAINER Jason Wilder mail@jasonwilder.com
 
 # Install wget and install/updates certificates
diff --git a/README.md b/README.md
index df3e838..c3f7643 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-![nginx 1.13.0](https://img.shields.io/badge/nginx-1.13.0-brightgreen.svg) ![License MIT](https://img.shields.io/badge/license-MIT-blue.svg) [![Build Status](https://travis-ci.org/jwilder/nginx-proxy.svg?branch=master)](https://travis-ci.org/jwilder/nginx-proxy) [![](https://img.shields.io/docker/stars/jwilder/nginx-proxy.svg)](https://hub.docker.com/r/jwilder/nginx-proxy 'DockerHub') [![](https://img.shields.io/docker/pulls/jwilder/nginx-proxy.svg)](https://hub.docker.com/r/jwilder/nginx-proxy 'DockerHub')
+![nginx 1.13](https://img.shields.io/badge/nginx-1.13-brightgreen.svg) ![License MIT](https://img.shields.io/badge/license-MIT-blue.svg) [![Build Status](https://travis-ci.org/jwilder/nginx-proxy.svg?branch=master)](https://travis-ci.org/jwilder/nginx-proxy) [![](https://img.shields.io/docker/stars/jwilder/nginx-proxy.svg)](https://hub.docker.com/r/jwilder/nginx-proxy 'DockerHub') [![](https://img.shields.io/docker/pulls/jwilder/nginx-proxy.svg)](https://hub.docker.com/r/jwilder/nginx-proxy 'DockerHub')
 
 
 nginx-proxy sets up a container running nginx and [docker-gen][1].  docker-gen generates reverse proxy configs for nginx and reloads nginx when containers are started and stopped.
diff --git a/test/certs/create_server_certificate.sh b/test/certs/create_server_certificate.sh
index adacb5e..bffc27e 100755
--- a/test/certs/create_server_certificate.sh
+++ b/test/certs/create_server_certificate.sh
@@ -24,7 +24,7 @@ fi
 # Create a nginx container (which conveniently provides the `openssl` command)
 ###############################################################################
 
-CONTAINER=$(docker run -d -v $DIR:/work -w /work -e SAN="$ALTERNATE_DOMAINS" nginx:1.13.0)
+CONTAINER=$(docker run -d -v $DIR:/work -w /work -e SAN="$ALTERNATE_DOMAINS" nginx:1.13)
 # Configure openssl
 docker exec $CONTAINER bash -c '
 	mkdir -p /ca/{certs,crl,private,newcerts} 2>/dev/null