diff --git a/examples/ruby-api/Gemfile.lock b/examples/ruby-api/Gemfile.lock
index 72f34a43..c801a44d 100644
--- a/examples/ruby-api/Gemfile.lock
+++ b/examples/ruby-api/Gemfile.lock
@@ -8,7 +8,7 @@ GEM
     nio4r (2.7.0)
     puma (5.6.8)
       nio4r (~> 2.0)
-    rack (2.2.6.4)
+    rack (2.2.9)
     rack-protection (2.2.3)
       rack
     ruby2_keywords (0.0.5)