diff --git a/Gemfile b/Gemfile
index ad1518b..6c5b2a4 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,4 +10,8 @@ group :jekyll_plugins do
   gem 'jekyll-livereload'
 end
 
+group :scripts do
+  gem 'octokit'
+end
+
 gem 'rb-fsevent', '0.9.8' # See issue https://github.com/guard/listen/issues/431
diff --git a/_apps/dco.md b/_apps/dco.md
index 07db96f..39f3544 100644
--- a/_apps/dco.md
+++ b/_apps/dco.md
@@ -8,7 +8,7 @@ organizations:
 - linuxfoundation
 - kubernetes
 - nodejs
-stars: 142
+stars: 19
 installs: 48
 author: bkeepers
 repository: probot/dco
diff --git a/_apps/duplicate-issues.md b/_apps/duplicate-issues.md
index 66246a4..62c0294 100644
--- a/_apps/duplicate-issues.md
+++ b/_apps/duplicate-issues.md
@@ -1,8 +1,8 @@
 ---
 title: Duplicate Issues
-description: Identify duplicate issues
+description: Automatically detects duplicate issues
 slug: dup
-stars: 14
+stars: 15
 installs: 4
 author: MarshallOfSound
 repository: MarshallOfSound/probot-issue-duplicate-detection
diff --git a/_apps/settings.md b/_apps/settings.md
index 1d84656..0538b5f 100644
--- a/_apps/settings.md
+++ b/_apps/settings.md
@@ -4,7 +4,7 @@ description: Pull Requests for repository settings
 slug: settings
 topics:
 - administration
-stars: 114
+stars: 121
 installs: 38
 author: bkeepers
 repository: probot/configurer
diff --git a/_apps/snooze.md b/_apps/snooze.md
index a9d4211..7abe111 100644
--- a/_apps/snooze.md
+++ b/_apps/snooze.md
@@ -3,7 +3,7 @@ title: Snooze
 description: Temporarily close Issues and Pull Requests
 slug: snooze
 author: jbjonesjr
-stars: 2
+stars: 3
 installs: 5
 repository: jbjonesjr/probot-snooze
 ---
diff --git a/_apps/stale.md b/_apps/stale.md
index f5df9d8..6e742f0 100644
--- a/_apps/stale.md
+++ b/_apps/stale.md
@@ -15,7 +15,7 @@ organizations:
 - github
 - npm
 author: bkeepers
-stars: 112
+stars: 124
 installs: 305
 repository: probot/stale
 ---
diff --git a/_apps/wip.md b/_apps/wip.md
index 4aaf1b6..4296502 100644
--- a/_apps/wip.md
+++ b/_apps/wip.md
@@ -3,7 +3,7 @@ title: Work In Progress
 description: Prevent merging of unfinished Pull Requests
 slug: wip
 author: gr2m
-stars: 4
+stars: 5
 installs: 7
 repository: gr2m/wip-bot
 ---
diff --git a/script/sync-stars b/script/sync-stars
new file mode 100755
index 0000000..ad8a25a
--- /dev/null
+++ b/script/sync-stars
@@ -0,0 +1,18 @@
+#!/usr/bin/env ruby
+# Sync star counts from GitHub
+
+require "octokit"
+client = Octokit::Client.new(:access_token => ENV["GITHUB_TOKEN"])
+
+require "jekyll"
+config = Jekyll.configuration("source" => File.expand_path('../', File.dirname(__FILE__)))
+site = Jekyll::Site.new(config)
+site.read
+
+site.collections["apps"].docs.each do |app|
+  repo = client.repository(app['repository'])
+
+  content = File.read(app.path)
+  content.sub!(/^stars: \d+$/, "stars: #{repo[:stargazers_count]}")
+  File.write(app.path, content)
+end