diff --git a/Gemfile b/Gemfile
index 4c4a61bb4e4..23d0b3d9b3e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -78,7 +78,7 @@ gem 'github-linguist', '~> 4.7.0', require: 'linguist'
 # API
 gem 'grape', '~> 1.0'
 gem 'grape-entity', '~> 0.6.0'
-gem 'rack-cors', '~> 0.4.0', require: 'rack/cors'
+gem 'rack-cors', '~> 1.0.0', require: 'rack/cors'
 
 # Disable strong_params so that Mash does not respond to :permitted?
 gem 'hashie-forbidden_attributes'
diff --git a/Gemfile.lock b/Gemfile.lock
index c854cda48ea..d10da1bd1c3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -651,7 +651,7 @@ GEM
       rack (>= 0.4)
     rack-attack (4.4.1)
       rack
-    rack-cors (0.4.0)
+    rack-cors (1.0.2)
     rack-oauth2 (1.2.3)
       activesupport (>= 2.3)
       attr_required (>= 0.0.5)
@@ -1133,7 +1133,7 @@ DEPENDENCIES
   pry-byebug (~> 3.4.1)
   pry-rails (~> 0.3.4)
   rack-attack (~> 4.4.1)
-  rack-cors (~> 0.4.0)
+  rack-cors (~> 1.0.0)
   rack-oauth2 (~> 1.2.1)
   rack-proxy (~> 0.6.0)
   rails (= 4.2.10)
@@ -1212,4 +1212,4 @@ DEPENDENCIES
   wikicloth (= 0.8.1)
 
 BUNDLED WITH
-   1.16.0
+   1.16.1