diff --git a/Gemfile.lock b/Gemfile.lock
index 0c20b6b..ab8f1cc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -47,7 +47,7 @@ GEM
     mime-types (1.17.2)
     multi_json (1.0.4)
     polyglot (0.3.3)
-    rack (1.4.1)
+    rack (1.4.7)
     rack-cache (1.1)
       rack (>= 0.4)
     rack-ssl (1.3.2)