diff --git a/Gemfile.lock b/Gemfile.lock
index 2611e27..767d5fa 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -19,7 +19,7 @@ GEM
       ast (~> 2.4.0)
     powerpack (0.1.2)
     public_suffix (3.0.3)
-    rack (2.0.6)
+    rack (2.0.8)
     rack-protection (2.0.4)
       rack
     rainbow (3.0.0)