diff --git a/spec/dummy_service/Gemfile.lock b/spec/dummy_service/Gemfile.lock
index 4aa3554..8522126 100644
--- a/spec/dummy_service/Gemfile.lock
+++ b/spec/dummy_service/Gemfile.lock
@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    rack (3.0.6.1)
+    rack (3.0.9.1)
 
 PLATFORMS
   ruby