diff --git a/Gemfile b/Gemfile
index b13895a..5eea608 100644
--- a/Gemfile
+++ b/Gemfile
@@ -14,7 +14,7 @@ gem 'middleman-sprockets', '~> 4.1'
 gem 'middleman-livereload', '~> 3.4', '>= 3.4.6'
 
 # Middleman Autoprefixer
-gem 'middleman-autoprefixer', '~> 2.9'
+gem 'middleman-autoprefixer', '~> 2.10'
 
 # Rack Middleware and Utilities
 gem 'rack-contrib', '~> 1.5'
diff --git a/Gemfile.lock b/Gemfile.lock
index 6a9b5f5..cd3a05d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,25 +1,25 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (5.0.6)
+    activesupport (5.0.7.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
-      i18n (~> 0.7)
+      i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.5.2)
+    addressable (2.6.0)
       public_suffix (>= 2.0.2, < 4.0)
-    autoprefixer-rails (8.0.0)
+    autoprefixer-rails (9.4.5)
       execjs
-    backports (3.11.1)
+    backports (3.11.4)
     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)
+    concurrent-ruby (1.1.4)
     contracts (0.13.0)
-    dotenv (2.2.1)
+    dotenv (2.6.0)
     em-websocket (0.5.1)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
@@ -27,14 +27,14 @@ GEM
     eventmachine (1.2.5)
     execjs (2.7.0)
     fast_blank (1.0.0)
-    fastimage (2.1.1)
-    ffi (1.9.21)
+    fastimage (2.1.5)
+    ffi (1.10.0)
     haml (5.0.4)
       temple (>= 0.8.0)
       tilt
     hamster (3.0.0)
       concurrent-ruby (~> 1.0)
-    hashie (3.5.7)
+    hashie (3.6.0)
     http_parser.rb (0.6.0)
     i18n (0.7.0)
     kramdown (1.15.0)
@@ -50,8 +50,8 @@ GEM
       middleman-cli (= 4.2.1)
       middleman-core (= 4.2.1)
       sass (>= 3.4.0, < 4.0)
-    middleman-autoprefixer (2.9.0)
-      autoprefixer-rails (~> 8.0)
+    middleman-autoprefixer (2.10.0)
+      autoprefixer-rails (>= 9.1.4)
       middleman-core (>= 3.3.3)
     middleman-cli (4.2.1)
       thor (>= 0.17.0, < 2.0)
@@ -95,17 +95,17 @@ GEM
       tilt (>= 1.4.1, < 3)
     padrino-support (0.13.3.4)
       activesupport (>= 3.1)
-    parallel (1.12.1)
-    public_suffix (3.0.2)
+    parallel (1.13.0)
+    public_suffix (3.0.3)
     puma (3.11.3)
-    rack (1.6.10)
+    rack (1.6.11)
     rack-contrib (1.8.0)
       rack (~> 1.4)
     rack-livereload (0.3.16)
       rack
-    rb-fsevent (0.10.2)
-    rb-inotify (0.9.10)
-      ffi (>= 0.5.0, < 2)
+    rb-fsevent (0.10.3)
+    rb-inotify (0.10.0)
+      ffi (~> 1.0)
     redcarpet (3.4.0)
     rouge (2.2.1)
     sass (3.4.25)
@@ -119,7 +119,7 @@ GEM
     temple (0.8.0)
     thor (0.20.0)
     thread_safe (0.3.6)
-    tilt (2.0.8)
+    tilt (2.0.9)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)
     uglifier (3.2.0)
@@ -131,7 +131,7 @@ PLATFORMS
 DEPENDENCIES
   coffee-script (~> 2.4, >= 2.4.1)
   middleman (~> 4.2, >= 4.2.1)
-  middleman-autoprefixer (~> 2.9)
+  middleman-autoprefixer (~> 2.10)
   middleman-livereload (~> 3.4, >= 3.4.6)
   middleman-sprockets (~> 4.1)
   middleman-syntax (= 3.0.0)