diff --git a/examples/rack/Gemfile.lock b/examples/rack/Gemfile.lock
index 9605bc3..007d5f0 100644
--- a/examples/rack/Gemfile.lock
+++ b/examples/rack/Gemfile.lock
@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    rack (2.0.5)
+    rack (2.0.6)
     rack-cors (1.0.2)
 
 PLATFORMS