diff --git a/examples/stacks/rails/blog/Gemfile.lock b/examples/stacks/rails/blog/Gemfile.lock
index b3fb3fd0693..5781f6d0dc3 100644
--- a/examples/stacks/rails/blog/Gemfile.lock
+++ b/examples/stacks/rails/blog/Gemfile.lock
@@ -137,7 +137,7 @@ GEM
     psych (5.1.2)
       stringio
     public_suffix (5.0.5)
-    puma (5.6.8)
+    puma (5.6.9)
       nio4r (~> 2.0)
     racc (1.8.0)
     rack (2.2.9)