diff --git a/backend/Gemfile.lock b/backend/Gemfile.lock
index 305cc84..4bb8ec6 100644
--- a/backend/Gemfile.lock
+++ b/backend/Gemfile.lock
@@ -93,7 +93,7 @@ GEM
       method_source (~> 1.0)
     puma (4.3.5)
       nio4r (~> 2.0)
-    rack (2.2.3)
+    rack (2.2.6.3)
     rack-cors (1.1.1)
       rack (>= 2.0.0)
     rack-test (1.1.0)