diff --git a/backend/Gemfile.lock b/backend/Gemfile.lock
index 48f0b89a..38f4190d 100644
--- a/backend/Gemfile.lock
+++ b/backend/Gemfile.lock
@@ -107,8 +107,8 @@ GEM
     puma (4.3.1)
       nio4r (~> 2.0)
     rack (2.0.7)
-    rack-cors (1.0.6)
-      rack (>= 1.6.0)
+    rack-cors (1.1.0)
+      rack (>= 2.0.0)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (6.0.1)