diff --git a/Gemfile.lock b/Gemfile.lock
index 996c9ef..62a1ee9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -104,7 +104,8 @@ GEM
       rack (>= 0.4)
     rack-contrib (1.2.0)
       rack (>= 0.9.1)
-    rack-cors (1.0.2)
+    rack-cors (1.0.5)
+      rack (>= 1.6.0)
     rack-protection (2.0.5)
       rack
     rack-test (0.7.0)