diff --git a/Gemfile.lock b/Gemfile.lock
index 13acc58..c9cfa5d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -57,7 +57,7 @@ GEM
       method_source (~> 1.0)
     public_suffix (4.0.6)
     racc (1.5.2)
-    rack (2.2.3)
+    rack (3.0.7)
     rake (0.9.6)
     rb-fsevent (0.11.0)
     rb-inotify (0.10.1)