diff --git a/Gemfile.lock b/Gemfile.lock
index c4dd930d..bdf4d04b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -191,7 +191,8 @@ GEM
     quiet_assets (1.1.0)
       railties (>= 3.1, < 5.0)
     rack (1.6.11)
-    rack-cors (1.0.2)
+    rack-cors (1.0.5)
+      rack (>= 1.6.0)
     rack-livereload (0.3.17)
       rack
     rack-protection (1.5.5)