diff --git a/Gemfile.lock b/Gemfile.lock
index 0526058..f27625d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -16,8 +16,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     ast (2.4.0)
     aws-sdk (2.11.79)
       aws-sdk-resources (= 2.11.79)
@@ -118,7 +118,7 @@ GEM
     diff-lcs (1.3)
     erubis (2.7.0)
     excon (0.62.0)
-    faraday (0.15.2)
+    faraday (0.17.4)
       multipart-post (>= 1.2, < 3)
     faraday-http-cache (2.0.0)
       faraday (~> 0.8)
@@ -226,7 +226,7 @@ GEM
     mixlib-versioning (1.2.2)
     molinillo (0.6.6)
     multi_json (1.13.1)
-    multipart-post (2.0.0)
+    multipart-post (2.1.1)
     nenv (0.3.0)
     net-scp (1.2.1)
       net-ssh (>= 2.6.5)
@@ -246,7 +246,8 @@ GEM
     notiffany (0.1.1)
       nenv (~> 0.1)
       shellany (~> 0.0)
-    octokit (4.11.0)
+    octokit (4.21.0)
+      faraday (>= 0.9)
       sawyer (~> 0.8.0, >= 0.5.3)
     ohai (8.26.1)
       chef-config (>= 12.5.0.alpha.1, < 14)
@@ -270,7 +271,7 @@ GEM
     pry (0.11.3)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    public_suffix (3.0.3)
+    public_suffix (4.0.6)
     rack (2.0.8)
     rainbow (3.0.0)
     rake (12.3.1)
@@ -330,9 +331,9 @@ GEM
     rubyntlm (0.6.2)
     rubyzip (1.2.2)
     rufus-lru (1.1.0)
-    sawyer (0.8.1)
-      addressable (>= 2.3.5, < 2.6)
-      faraday (~> 0.8, < 1.0)
+    sawyer (0.8.2)
+      addressable (>= 2.3.5)
+      faraday (> 0.8, < 2.0)
     semverse (2.0.0)
     serverspec (2.41.3)
       multi_json