diff --git a/sample-functions-framework-ruby/Gemfile.lock b/sample-functions-framework-ruby/Gemfile.lock
index 5b11279..e53367b 100644
--- a/sample-functions-framework-ruby/Gemfile.lock
+++ b/sample-functions-framework-ruby/Gemfile.lock
@@ -9,7 +9,7 @@ GEM
     nio4r (2.5.9)
     puma (5.6.7)
       nio4r (~> 2.0)
-    rack (2.2.6.4)
+    rack (2.2.22)
 
 PLATFORMS
   x86_64-linux