diff --git a/appengine/standard-rails-hello-world/Gemfile.lock b/appengine/standard-rails-hello-world/Gemfile.lock
index 96e6c5de4..0eed2f33d 100644
--- a/appengine/standard-rails-hello-world/Gemfile.lock
+++ b/appengine/standard-rails-hello-world/Gemfile.lock
@@ -127,7 +127,7 @@ GEM
     puma (6.4.2)
       nio4r (~> 2.0)
     racc (1.7.3)
-    rack (2.2.8.1)
+    rack (2.2.22)
     rack-test (2.1.0)
       rack (>= 1.3)
     rails (7.0.8.1)