diff --git a/9000/alpine-jdk/Dockerfile b/9000/alpine-jdk/Dockerfile
index 040f8f9..83dcb3b 100644
--- a/9000/alpine-jdk/Dockerfile
+++ b/9000/alpine-jdk/Dockerfile
@@ -1,11 +1,13 @@
-FROM openjdk:8-jdk-alpine
+# Update this to bump the java version
+FROM openjdk:13-jdk-alpine
 
 RUN apk add --no-cache \
       bash \
       libc6-compat
 
-ENV JRUBY_VERSION 9.2.11.1
-ENV JRUBY_SHA256 f10449c82567133908e5e1ac076438307a7f0916f617f40fa314b78873a195dc
+# Update these two values to bump the JRuby version, get values from https://repo1.maven.org/maven2/org/jruby/jruby-dist/
+ENV JRUBY_VERSION 9.2.16.0
+ENV JRUBY_SHA256 5ae27f149f73f3fea4f34359cbb773c25d9d987e72b5edec9e8b93957997eb30
 
 RUN apk add --no-cache --virtual .build-deps \
       curl \
diff --git a/README.md b/README.md
index 671d94c..ecef8d0 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,6 @@
-JRuby Docker Image
+Finalsite JRuby Docker Image
 ===================
 
-Builds jruby docker images.
-
-To update the images, specify the version in `<major>/VERSION`. This should be
-the full version.
+1. Update 9000/alpine-jdk/Dockerfile to the desired java/jruby versions
+2. Build and tag the container: `docker build . -t {dev docker repo}/builds/jruby:{jrubyversion}-jdk-alpine`
+3. Push the new image: `docker push {dev docker repo}/builds/jruby:{jrubyversion}-jdk-alpine`