diff --git a/Gemfile.lock b/Gemfile.lock
index c696fa4..ccb11f3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -268,7 +268,8 @@ GEM
     powerpack (0.1.1)
     public_suffix (3.0.1)
     rack (2.0.3)
-    rack-cors (1.0.2)
+    rack-cors (1.0.5)
+      rack (>= 1.6.0)
     rack-protection (2.0.0)
       rack
     rack-test (0.7.0)