diff --git a/.ruby-version b/.ruby-version
index cd57a8b..ccbccc3 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.1.5
+2.2.0
diff --git a/Gemfile b/Gemfile
index e531f10..d65e35a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,5 +1,5 @@
 source 'https://rubygems.org'
-ruby '2.1.5'
+ruby '2.2.0'
 
 gem 'rake'
 gem 'knife-solo'
diff --git a/Gemfile.lock b/Gemfile.lock
index 69504bd..8dcc8a3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,45 +1,43 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    chef (11.16.0)
-      chef-zero (~> 2.1, >= 2.1.4)
+    chef (12.0.3)
+      chef-zero (~> 3.2)
       diff-lcs (~> 1.2, >= 1.2.4)
       erubis (~> 2.7)
-      ffi-yajl (~> 1.0)
+      ffi-yajl (~> 1.2)
       highline (~> 1.6, >= 1.6.9)
-      mime-types (~> 1.16)
       mixlib-authentication (~> 1.3)
       mixlib-cli (~> 1.4)
       mixlib-config (~> 2.0)
       mixlib-log (~> 1.3)
-      mixlib-shellout (~> 1.4)
+      mixlib-shellout (>= 2.0.0.rc.0, < 3.0)
       net-ssh (~> 2.6)
       net-ssh-multi (~> 1.1)
-      ohai (~> 7.4)
+      ohai (~> 8.0)
       plist (~> 3.1.0)
       pry (~> 0.9)
-      rest-client (>= 1.0.4, <= 1.6.7)
-    chef-zero (2.2)
+    chef-zero (3.2.1)
+      ffi-yajl (~> 1.1)
       hashie (~> 2.0)
-      json
       mixlib-log (~> 1.3)
       rack
+      uuidtools (~> 2.1)
     coderay (1.1.0)
     diff-lcs (1.2.5)
     erubis (2.7.0)
-    ffi (1.9.3)
-    ffi-yajl (1.1.0)
+    ffi (1.9.6)
+    ffi-yajl (1.3.1)
       ffi (~> 1.5)
-      libyajl2 (~> 1.0)
+      libyajl2 (~> 1.2)
     hashie (2.1.2)
     highline (1.6.21)
     ipaddress (0.8.0)
-    json (1.8.1)
     knife-solo (0.4.2)
       chef (>= 10.12)
       erubis (~> 2.7.0)
       net-ssh (>= 2.2.2, < 3.0)
-    libyajl2 (1.0.1)
+    libyajl2 (1.2.0)
     method_source (0.8.2)
     mime-types (1.25.1)
     mixlib-authentication (1.3.0)
@@ -47,22 +45,28 @@ GEM
     mixlib-cli (1.5.0)
     mixlib-config (2.1.0)
     mixlib-log (1.6.0)
-    mixlib-shellout (1.4.0)
-    net-ssh (2.9.1)
+    mixlib-shellout (2.0.1)
+    multi_json (1.10.1)
+    net-dhcp (1.3.2)
+    net-scp (1.2.1)
+      net-ssh (>= 2.6.5)
+    net-ssh (2.9.2)
     net-ssh-gateway (1.2.0)
       net-ssh (>= 2.6.5)
     net-ssh-multi (1.2.0)
       net-ssh (>= 2.6.5)
       net-ssh-gateway (>= 1.2.0)
-    ohai (7.4.0)
+    ohai (8.0.1)
       ffi (~> 1.9)
-      ffi-yajl (~> 1.0)
+      ffi-yajl (~> 1.1)
       ipaddress
       mime-types (~> 1.16)
       mixlib-cli
       mixlib-config (~> 2.0)
       mixlib-log
-      mixlib-shellout (~> 1.2)
+      mixlib-shellout (~> 2.0)
+      net-dhcp
+      rake (~> 10.1)
       systemu (~> 2.6.4)
       wmi-lite (~> 1.0)
     plist (3.1.0)
@@ -70,30 +74,34 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    rack (1.5.2)
-    rake (10.3.2)
-    rest-client (1.6.7)
-      mime-types (>= 1.16)
-    rspec (2.99.0)
-      rspec-core (~> 2.99.0)
-      rspec-expectations (~> 2.99.0)
-      rspec-mocks (~> 2.99.0)
-    rspec-core (2.99.2)
-    rspec-expectations (2.99.2)
-      diff-lcs (>= 1.1.3, < 2.0)
-    rspec-its (1.0.1)
-      rspec-core (>= 2.99.0.beta1)
-      rspec-expectations (>= 2.99.0.beta1)
-    rspec-mocks (2.99.2)
-    serverspec (1.16.0)
-      highline
-      net-ssh
-      rspec (~> 2.99)
+    rack (1.6.0)
+    rake (10.4.2)
+    rspec (3.1.0)
+      rspec-core (~> 3.1.0)
+      rspec-expectations (~> 3.1.0)
+      rspec-mocks (~> 3.1.0)
+    rspec-core (3.1.7)
+      rspec-support (~> 3.1.0)
+    rspec-expectations (3.1.2)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.1.0)
+    rspec-its (1.1.0)
+      rspec-core (>= 3.0.0)
+      rspec-expectations (>= 3.0.0)
+    rspec-mocks (3.1.3)
+      rspec-support (~> 3.1.0)
+    rspec-support (3.1.2)
+    serverspec (2.7.2)
+      multi_json
+      rspec (~> 3.0)
       rspec-its
-      specinfra (~> 1.27)
+      specinfra (~> 2.10)
     slop (3.6.0)
-    specinfra (1.27.0)
+    specinfra (2.11.9)
+      net-scp
+      net-ssh
     systemu (2.6.4)
+    uuidtools (2.1.5)
     wmi-lite (1.0.0)
 
 PLATFORMS