diff --git a/Gemfile.lock b/Gemfile.lock
index 0988062..6799164 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -106,7 +106,8 @@ GEM
     public_suffix (4.0.1)
     puma (3.12.1)
     rack (2.0.7)
-    rack-cors (1.0.3)
+    rack-cors (1.0.5)
+      rack (>= 1.6.0)
     rack-proxy (0.6.5)
       rack
     rack-reverse-proxy (0.12.0)