diff --git a/test/dummy/Gemfile.lock b/test/dummy/Gemfile.lock
index e19c6abe..595fb566 100644
--- a/test/dummy/Gemfile.lock
+++ b/test/dummy/Gemfile.lock
@@ -2,7 +2,7 @@ GEM
   remote: http://rubygems.org/
   specs:
     mustermann (1.0.3)
-    rack (2.0.8)
+    rack (2.1.4)
     rack-protection (2.0.3)
       rack
     sinatra (2.0.3)