diff --git a/Gemfile.lock b/Gemfile.lock
index b429c99..dfbd956 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -40,7 +40,7 @@ GEM
       multi_json (~> 1.3)
       multi_xml (~> 0.5)
       rack (>= 1.2, < 3)
-    rack (2.0.6)
+    rack (2.2.3)
     rake (10.5.0)
 
 PLATFORMS