diff --git a/dummy_app/Gemfile.lock b/dummy_app/Gemfile.lock
index 4069a2f1..28dfae43 100644
--- a/dummy_app/Gemfile.lock
+++ b/dummy_app/Gemfile.lock
@@ -3,7 +3,7 @@ GEM
   specs:
     mustermann (1.0.0)
     puma (3.9.1)
-    rack (2.0.3)
+    rack (2.2.3)
     rack-protection (2.0.0)
       rack
     sinatra (2.0.0)