diff --git a/Gemfile b/Gemfile
index 9b564d7..8afa634 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
-gem 'chef',   '~> 12.7.2'
+gem 'chef',   '~> 12.8.1'
 gem 'batali'
 gem 'knife-solo'
 gem 'knife-solo_data_bag'
diff --git a/Gemfile.lock b/Gemfile.lock
index 7e484c7..3a6b377 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,21 +2,21 @@ GEM
   remote: https://rubygems.org/
   specs:
     addressable (2.4.0)
-    attribute_struct (0.2.28)
+    attribute_struct (0.3.4)
       bogo (>= 0.1.31, < 0.3.0)
-    batali (0.4.0)
-      attribute_struct (~> 0.2.14)
-      bogo (~> 0.1.20)
-      bogo-cli (~> 0.1.23)
-      bogo-config (~> 0.1.10)
-      bogo-ui (~> 0.1.6)
+    batali (0.4.8)
+      attribute_struct (>= 0.2.14, < 0.5)
+      bogo (>= 0.1.20, < 0.4)
+      bogo-cli (>= 0.1.23, < 0.4)
+      bogo-config (>= 0.1.10, < 0.4)
+      bogo-ui (>= 0.1.6, < 0.4)
       git
-      grimoire (~> 0.2.12)
+      grimoire (>= 0.2.14, < 0.4)
       http (>= 0.8.2, < 1.0.0)
-    bogo (0.1.32)
+    bogo (0.2.2)
       hashie
       multi_json
-    bogo-cli (0.1.32)
+    bogo-cli (0.2.4)
       bogo (>= 0.1.6)
       bogo-config
       bogo-ui
@@ -26,13 +26,14 @@ GEM
       bogo (>= 0.1.4, < 1.0)
       multi_json
       multi_xml
-    bogo-ui (0.1.12)
+    bogo-ui (0.1.16)
       bogo
       command_line_reporter
       paint
     builder (3.2.2)
-    chef (12.7.2)
-      chef-config (= 12.7.2)
+    chef (12.8.1)
+      bundler (>= 1.10)
+      chef-config (= 12.8.1)
       chef-zero (~> 4.5)
       diff-lcs (~> 1.2, >= 1.2.4)
       erubis (~> 2.7)
@@ -55,7 +56,7 @@ GEM
       specinfra (~> 2.10)
       syslog-logger (~> 1.6)
       uuidtools (~> 2.1.5)
-    chef-config (12.7.2)
+    chef-config (12.8.1)
       mixlib-config (~> 2.0)
       mixlib-shellout (~> 2.0)
     chef-zero (4.5.0)
@@ -68,16 +69,16 @@ GEM
     command_line_reporter (3.3.6)
       colored (>= 1.2)
     diff-lcs (1.2.5)
-    domain_name (0.5.20160128)
+    domain_name (0.5.20160309)
       unf (>= 0.0.5, < 1.0.0)
     erubis (2.7.0)
     ffi (1.9.10)
     ffi-yajl (2.2.3)
       libyajl2 (~> 1.2)
-    git (1.2.9.1)
-    grimoire (0.2.12)
-      attribute_struct (>= 0.1.12)
-      bogo (~> 0.1.10)
+    git (1.3.0)
+    grimoire (0.2.14)
+      attribute_struct (>= 0.1.12, < 0.5)
+      bogo (>= 0.1.10, < 1.0)
     hashie (3.4.3)
     highline (1.7.8)
     http (0.9.8)
@@ -90,10 +91,10 @@ GEM
     http-form_data (1.0.1)
     http_parser.rb (0.6.0)
     ipaddress (0.8.3)
-    knife-solo (0.4.2)
-      chef (>= 10.12)
+    knife-solo (0.5.1)
+      chef (>= 10.20)
       erubis (~> 2.7.0)
-      net-ssh (>= 2.2.2, < 3.0)
+      net-ssh (~> 2.7, < 3.0)
     knife-solo_data_bag (1.1.0)
     libyajl2 (1.2.0)
     mixlib-authentication (1.4.0)
@@ -116,7 +117,7 @@ GEM
       net-ssh (>= 2.6.5)
       net-ssh-gateway (>= 1.2.0)
     net-telnet (0.1.1)
-    ohai (8.10.0)
+    ohai (8.12.1)
       chef-config (>= 12.5.0.alpha.1, < 13)
       ffi (~> 1.9)
       ffi-yajl (~> 2.2)
@@ -125,19 +126,18 @@ GEM
       mixlib-config (~> 2.0)
       mixlib-log
       mixlib-shellout (~> 2.0)
-      rake (~> 10.1)
+      plist
       systemu (~> 2.6.4)
       wmi-lite (~> 1.0)
     paint (1.0.1)
     plist (3.1.0)
     proxifier (1.0.3)
     rack (1.6.4)
-    rake (10.5.0)
     rspec (3.4.0)
       rspec-core (~> 3.4.0)
       rspec-expectations (~> 3.4.0)
       rspec-mocks (~> 3.4.0)
-    rspec-core (3.4.3)
+    rspec-core (3.4.4)
       rspec-support (~> 3.4.0)
     rspec-expectations (3.4.0)
       diff-lcs (>= 1.2.0, < 2.0)
@@ -152,14 +152,14 @@ GEM
     rspec_junit_formatter (0.2.3)
       builder (< 4)
       rspec-core (>= 2, < 4, != 2.12.0)
-    serverspec (2.29.2)
+    serverspec (2.31.0)
       multi_json
       rspec (~> 3.0)
       rspec-its
-      specinfra (~> 2.48)
+      specinfra (~> 2.53)
     sfl (2.2)
     slop (3.6.0)
-    specinfra (2.51.1)
+    specinfra (2.53.1)
       net-scp
       net-ssh (>= 2.7, < 3.1)
       net-telnet
@@ -177,6 +177,6 @@ PLATFORMS
 
 DEPENDENCIES
   batali
-  chef (~> 12.7.2)
+  chef (~> 12.8.1)
   knife-solo
   knife-solo_data_bag