diff --git a/release-prep b/release-prep
new file mode 100755
index 0000000..484c425
--- /dev/null
+++ b/release-prep
@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+# The container tag should closely match what is used in `docker/Dockerfile` in vmpooler-deployment
+#
+# Update Gemfile.lock
+docker run -t --rm \
+  -v $(pwd):/app \
+  jruby:9.4.3.0-jdk11 \
+  /bin/bash -c 'apt-get update -qq && apt-get install -y --no-install-recommends git make netbase && cd /app && gem install bundler && bundle install --jobs 3; echo "LOCK_FILE_UPDATE_EXIT_CODE=$?"'
+
+# Update Changelog
+docker run -t --rm -e CHANGELOG_GITHUB_TOKEN -v $(pwd):/usr/local/src/your-app \
+  githubchangeloggenerator/github-changelog-generator:1.16.2 \
+  github_changelog_generator --future-release $(grep VERSION lib/vmpooler-provider-ec2/version.rb |rev |cut -d "'" -f2 |rev)
diff --git a/update-changelog b/update-changelog
deleted file mode 100755
index f3949d4..0000000
--- a/update-changelog
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/usr/bin/env bash
-
-docker run -it --rm -e CHANGELOG_GITHUB_TOKEN -v $(pwd):/usr/local/src/your-app \
-  githubchangeloggenerator/github-changelog-generator:1.16.2 \
-  github_changelog_generator --future-release $(grep VERSION lib/vmpooler-provider-ec2/version.rb |rev |cut -d "'" -f2 |rev)