diff --git a/api/ruby/delivering-deployments/Gemfile.lock b/api/ruby/delivering-deployments/Gemfile.lock
index 6261cde..78662c4 100644
--- a/api/ruby/delivering-deployments/Gemfile.lock
+++ b/api/ruby/delivering-deployments/Gemfile.lock
@@ -8,7 +8,7 @@ GEM
     multipart-post (2.0.0)
     octokit (3.0.0)
       sawyer (~> 0.5.3)
-    rack (1.5.2)
+    rack (1.6.13)
     rack-protection (1.5.2)
       rack
     sawyer (0.5.4)