diff --git a/Gemfile b/Gemfile
index 73f7a16891c..755165be089 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,7 +4,7 @@ source 'https://rubygems.org'
 gem 'middleman', '~>3.3.10'
 gem 'middleman-gh-pages', '~> 0.0.3'
 gem 'middleman-syntax', '~> 2.0.0'
-gem 'rouge', '~> 1.8.0'
+gem 'rouge', '~> 1.9.0'
 gem 'redcarpet', '~> 3.2.2'
 
 gem 'rake', '~> 10.4.2'
diff --git a/Gemfile.lock b/Gemfile.lock
index c22d1d07291..ce2594750e3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -93,7 +93,7 @@ GEM
       ffi (>= 0.5.0)
     redcarpet (3.2.3)
     ref (1.0.5)
-    rouge (1.8.0)
+    rouge (1.9.0)
     sass (3.4.13)
     sprockets (2.12.3)
       hike (~> 1.2)
@@ -129,5 +129,5 @@ DEPENDENCIES
   middleman-syntax (~> 2.0.0)
   rake (~> 10.4.2)
   redcarpet (~> 3.2.2)
-  rouge (~> 1.8.0)
+  rouge (~> 1.9.0)
   therubyracer (~> 0.12.1)