diff --git a/technology/guides/08-Continuous-Integration/simple-sinatra-app-to-deploy/Gemfile.lock b/technology/guides/08-Continuous-Integration/simple-sinatra-app-to-deploy/Gemfile.lock
index 5136dfe..ffc9e15 100644
--- a/technology/guides/08-Continuous-Integration/simple-sinatra-app-to-deploy/Gemfile.lock
+++ b/technology/guides/08-Continuous-Integration/simple-sinatra-app-to-deploy/Gemfile.lock
@@ -22,7 +22,7 @@ GEM
     puma (6.4.2)
       nio4r (~> 2.0)
     racc (1.7.3)
-    rack (2.2.8.1)
+    rack (2.2.13)
     rack-protection (2.1.0)
       rack
     rack-test (1.1.0)