diff --git a/Gemfile.lock b/Gemfile.lock
index 878be0f..16360b3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -91,7 +91,7 @@ GEM
     mixlib-cli (1.5.0)
     mixlib-config (2.1.0)
     mixlib-log (1.6.0)
-    mixlib-shellout (1.6.0)
+    mixlib-shellout (1.6.1)
     multi_json (1.10.1)
     net-scp (1.2.1)
       net-ssh (>= 2.6.5)
@@ -120,7 +120,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    rack (1.5.2)
+    rack (2.2.3)
     rake (10.3.2)
     rb-fsevent (0.9.4)
     rb-inotify (0.9.5)