diff --git a/Gemfile.lock b/Gemfile.lock
index a328f99..190e2bb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -118,7 +118,7 @@ GEM
     powerpack (0.1.2)
     psych (3.1.0)
     public_suffix (3.0.3)
-    rack (2.0.7)
+    rack (2.0.8)
     rainbow (3.0.0)
     rake (12.3.2)
     rest-client (2.0.2)