diff --git a/backend/Gemfile.lock b/backend/Gemfile.lock
index 38f4190d..3ab0f914 100644
--- a/backend/Gemfile.lock
+++ b/backend/Gemfile.lock
@@ -106,7 +106,7 @@ GEM
     public_suffix (4.0.1)
     puma (4.3.1)
       nio4r (~> 2.0)
-    rack (2.0.7)
+    rack (2.0.8)
     rack-cors (1.1.0)
       rack (>= 2.0.0)
     rack-test (1.1.0)