diff --git a/.probo.yaml b/.probo.yaml
new file mode 100644
index 0000000..00a2362
--- /dev/null
+++ b/.probo.yaml
@@ -0,0 +1,14 @@
+image: proboci/ubuntu-16.04-lamp:php-7.1
+steps:
+  - name: Setup Slate docs.
+    plugin: Script
+    script: |
+      chown www-data:www-data $SRC_DIR
+      cd $SRC_DIR
+      apt-get update
+      apt-get install -y ruby-full
+      ruby -v
+      gem install bundler
+      bundle install
+      bundle exec middleman build --clean
+      ln -s $SRC_DIR/build /var/www/html
diff --git a/Gemfile b/Gemfile
index 79d41ff..04b7aaa 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,7 +2,7 @@ ruby '>=2.3.1'
 source 'https://rubygems.org'
 
 # Middleman
-gem 'middleman', '~>4.2.1'
+gem 'middleman', '~>4.3.1'
 gem 'middleman-syntax', '~> 3.0.0'
 gem 'middleman-autoprefixer', '~> 2.7.0'
 gem 'middleman-sprockets', '~> 4.1.0'
diff --git a/Gemfile.lock b/Gemfile.lock
deleted file mode 100644
index eebb95a..0000000
--- a/Gemfile.lock
+++ /dev/null
@@ -1,129 +0,0 @@
-GEM
-  remote: https://rubygems.org/
-  specs:
-    activesupport (5.0.1)
-      concurrent-ruby (~> 1.0, >= 1.0.2)
-      i18n (~> 0.7)
-      minitest (~> 5.1)
-      tzinfo (~> 1.1)
-    addressable (2.5.0)
-      public_suffix (~> 2.0, >= 2.0.2)
-    autoprefixer-rails (6.6.1)
-      execjs
-    backports (3.6.8)
-    coffee-script (2.4.1)
-      coffee-script-source
-      execjs
-    coffee-script-source (1.12.2)
-    compass-import-once (1.0.5)
-      sass (>= 3.2, < 3.5)
-    concurrent-ruby (1.0.5)
-    contracts (0.13.0)
-    dotenv (2.2.0)
-    erubis (2.7.0)
-    execjs (2.7.0)
-    fast_blank (1.0.0)
-    fastimage (2.0.1)
-      addressable (~> 2)
-    ffi (1.9.17)
-    haml (4.0.7)
-      tilt
-    hamster (3.0.0)
-      concurrent-ruby (~> 1.0)
-    hashie (3.5.1)
-    i18n (0.7.0)
-    kramdown (1.13.2)
-    listen (3.0.8)
-      rb-fsevent (~> 0.9, >= 0.9.4)
-      rb-inotify (~> 0.9, >= 0.9.7)
-    memoist (0.15.0)
-    middleman (4.2.1)
-      coffee-script (~> 2.2)
-      compass-import-once (= 1.0.5)
-      haml (>= 4.0.5)
-      kramdown (~> 1.2)
-      middleman-cli (= 4.2.1)
-      middleman-core (= 4.2.1)
-      sass (>= 3.4.0, < 4.0)
-    middleman-autoprefixer (2.7.1)
-      autoprefixer-rails (>= 6.5.2, < 7.0.0)
-      middleman-core (>= 3.3.3)
-    middleman-cli (4.2.1)
-      thor (>= 0.17.0, < 2.0)
-    middleman-core (4.2.1)
-      activesupport (>= 4.2, < 5.1)
-      addressable (~> 2.3)
-      backports (~> 3.6)
-      bundler (~> 1.1)
-      contracts (~> 0.13.0)
-      dotenv
-      erubis
-      execjs (~> 2.0)
-      fast_blank
-      fastimage (~> 2.0)
-      hamster (~> 3.0)
-      hashie (~> 3.4)
-      i18n (~> 0.7.0)
-      listen (~> 3.0.0)
-      memoist (~> 0.14)
-      padrino-helpers (~> 0.13.0)
-      parallel
-      rack (>= 1.4.5, < 3)
-      sass (>= 3.4)
-      servolux
-      tilt (~> 2.0)
-      uglifier (~> 3.0)
-    middleman-sprockets (4.1.0)
-      middleman-core (~> 4.0)
-      sprockets (>= 3.0)
-    middleman-syntax (3.0.0)
-      middleman-core (>= 3.2)
-      rouge (~> 2.0)
-    mini_portile2 (2.3.0)
-    minitest (5.10.1)
-    nokogiri (1.8.2)
-      mini_portile2 (~> 2.3.0)
-    padrino-helpers (0.13.3.3)
-      i18n (~> 0.6, >= 0.6.7)
-      padrino-support (= 0.13.3.3)
-      tilt (>= 1.4.1, < 3)
-    padrino-support (0.13.3.3)
-      activesupport (>= 3.1)
-    parallel (1.10.0)
-    public_suffix (2.0.5)
-    rack (2.0.5)
-    rb-fsevent (0.9.8)
-    rb-inotify (0.9.8)
-      ffi (>= 0.5.0)
-    redcarpet (3.4.0)
-    rouge (2.0.7)
-    sass (3.4.23)
-    servolux (0.12.0)
-    sprockets (3.7.2)
-      concurrent-ruby (~> 1.0)
-      rack (> 1, < 3)
-    thor (0.19.4)
-    thread_safe (0.3.5)
-    tilt (2.0.6)
-    tzinfo (1.2.2)
-      thread_safe (~> 0.1)
-    uglifier (3.0.4)
-      execjs (>= 0.3.0, < 3)
-
-PLATFORMS
-  ruby
-
-DEPENDENCIES
-  middleman (~> 4.2.1)
-  middleman-autoprefixer (~> 2.7.0)
-  middleman-sprockets (~> 4.1.0)
-  middleman-syntax (~> 3.0.0)
-  nokogiri (~> 1.8.2)
-  redcarpet (~> 3.4.0)
-  rouge (~> 2.0.5)
-
-RUBY VERSION
-   ruby 2.3.3p222
-
-BUNDLED WITH
-   1.15.4