diff --git a/Gemfile b/Gemfile
index 5f8b0de2f..b0cc27b8a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -54,7 +54,7 @@ gem "configurate", "0.3.1"
 
 # Cross-origin resource sharing
 
-gem "rack-cors", "1.0.2", require: "rack/cors"
+gem "rack-cors", "1.0.3", require: "rack/cors"
 
 # CSS
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 81de66909..31200591c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -491,7 +491,7 @@ GEM
     public_suffix (3.0.3)
     raabro (1.1.6)
     rack (2.0.7)
-    rack-cors (1.0.2)
+    rack-cors (1.0.3)
     rack-google-analytics (1.2.0)
       actionpack
       activesupport
@@ -853,7 +853,7 @@ DEPENDENCIES
   pronto-scss (= 0.9.1)
   pry
   pry-byebug
-  rack-cors (= 1.0.2)
+  rack-cors (= 1.0.3)
   rack-google-analytics (= 1.2.0)
   rack-piwik (= 0.3.0)
   rack-rewrite (= 1.5.1)