diff --git a/20141120/vagrant_and_chef/demo/Gemfile.lock b/20141120/vagrant_and_chef/demo/Gemfile.lock
index 59767f3..eaee7a0 100644
--- a/20141120/vagrant_and_chef/demo/Gemfile.lock
+++ b/20141120/vagrant_and_chef/demo/Gemfile.lock
@@ -66,7 +66,7 @@ GEM
     erubis (2.7.0)
     faraday (0.9.0)
       multipart-post (>= 1.2, < 3)
-    ffi (1.9.6)
+    ffi (1.11.1)
     ffi-yajl (1.2.0)
       ffi (~> 1.5)
       libyajl2 (~> 1.0)
@@ -95,7 +95,7 @@ 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)
     multipart-post (2.0.0)
     net-http-persistent (2.9.4)
     net-ssh (2.9.1)