diff --git a/sinatra-BE/Gemfile.lock b/sinatra-BE/Gemfile.lock
index 22c1cbb..6670818 100644
--- a/sinatra-BE/Gemfile.lock
+++ b/sinatra-BE/Gemfile.lock
@@ -2,7 +2,7 @@ GEM
   remote: https://rubygems.org/
   specs:
     mustermann (1.0.2)
-    rack (2.0.4)
+    rack (2.2.3)
     rack-protection (2.0.1)
       rack
     shotgun (0.9.2)