diff --git a/Gemfile.lock b/Gemfile.lock
index 68b6954..11fe210 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -124,8 +124,8 @@ GEM
     pg (1.1.4)
     puma (3.12.2)
     rack (2.0.8)
-    rack-cors (1.0.5)
-      rack (>= 1.6.0)
+    rack-cors (1.1.0)
+      rack (>= 2.0.0)
     rack-pjax (1.1.0)
       nokogiri (~> 1.5)
       rack (>= 1.1)