diff --git a/example/Gemfile.lock b/example/Gemfile.lock
index 1e705c2..8c2954f 100644
--- a/example/Gemfile.lock
+++ b/example/Gemfile.lock
@@ -29,7 +29,7 @@ GEM
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    rack (2.2.3)
+    rack (2.2.6.4)
     rack-protection (2.2.0)
       rack
     raindrops (0.19.0)