diff --git a/examples/ruby-api/Gemfile.lock b/examples/ruby-api/Gemfile.lock
index d34d02cb..e89a8c42 100644
--- a/examples/ruby-api/Gemfile.lock
+++ b/examples/ruby-api/Gemfile.lock
@@ -8,7 +8,7 @@ GEM
     nio4r (2.7.3)
     puma (5.6.9)
       nio4r (~> 2.0)
-    rack (2.2.18)
+    rack (2.2.20)
     rack-protection (2.2.3)
       rack
     ruby2_keywords (0.0.5)