diff --git a/app/fivetracks-api/Gemfile.lock b/app/fivetracks-api/Gemfile.lock
index 69119a0..15cf996 100644
--- a/app/fivetracks-api/Gemfile.lock
+++ b/app/fivetracks-api/Gemfile.lock
@@ -99,7 +99,8 @@ GEM
     pg (1.0.0)
     puma (3.11.3)
     rack (2.0.4)
-    rack-cors (1.0.2)
+    rack-cors (1.0.5)
+      rack (>= 1.6.0)
     rack-test (0.8.3)
       rack (>= 1.0, < 3)
     rails (5.1.5)