diff --git a/Gemfile.lock b/Gemfile.lock
index 3dffd14..631da1b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -102,7 +102,7 @@ GEM
     ptools (1.3.3)
     public_suffix (2.0.5)
     pygmentize (0.0.3)
-    rack (2.0.1)
+    rack (2.0.8)
     rack-livereload (0.3.16)
       rack
     rb-fsevent (0.9.8)