diff --git a/demo/Gemfile.lock b/demo/Gemfile.lock
index 43d243f..f22b030 100644
--- a/demo/Gemfile.lock
+++ b/demo/Gemfile.lock
@@ -19,7 +19,7 @@ GEM
       ast (~> 2.4.1)
     puma (5.6.4)
       nio4r (~> 2.0)
-    rack (2.2.3)
+    rack (2.2.8.1)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rainbow (3.0.0)