diff --git a/examples/ruby/Gemfile.lock b/examples/ruby/Gemfile.lock
index f4a04f8..70efac6 100644
--- a/examples/ruby/Gemfile.lock
+++ b/examples/ruby/Gemfile.lock
@@ -2,7 +2,7 @@ GEM
   remote: https://rubygems.org/
   specs:
     mustermann (1.0.3)
-    rack (2.2.3)
+    rack (2.2.6.2)
     rack-protection (2.0.4)
       rack
     sinatra (2.0.4)