diff --git a/Gemfile.lock b/Gemfile.lock
index 7efd843..8e5a44e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -3,22 +3,47 @@ GEM
   specs:
     addressable (2.9.0)
       public_suffix (>= 2.0.2, < 8.0)
+    base64 (0.3.0)
+    bigdecimal (4.1.1)
     builder (3.3.0)
+    descendants_tracker (0.0.4)
+      thread_safe (~> 0.3, >= 0.3.1)
     diff-lcs (1.6.2)
+    docile (1.4.1)
     fakeweb (1.3.0)
-    faraday (0.7.6)
-      addressable (~> 2.2)
-      multipart-post (~> 1.1)
-      rack (~> 1.1)
+    faraday (1.10.5)
+      faraday-em_http (~> 1.0)
+      faraday-em_synchrony (~> 1.0)
+      faraday-excon (~> 1.1)
+      faraday-httpclient (~> 1.0)
+      faraday-multipart (~> 1.0)
+      faraday-net_http (~> 1.0)
+      faraday-net_http_persistent (~> 1.0)
+      faraday-patron (~> 1.0)
+      faraday-rack (~> 1.0)
+      faraday-retry (~> 1.0)
+      ruby2_keywords (>= 0.0.4)
+    faraday-em_http (1.0.0)
+    faraday-em_synchrony (1.0.1)
+    faraday-excon (1.1.0)
+    faraday-httpclient (1.0.1)
+    faraday-multipart (1.2.0)
+      multipart-post (~> 2.0)
+    faraday-net_http (1.0.2)
+    faraday-net_http_persistent (1.2.0)
+    faraday-patron (1.0.0)
+    faraday-rack (1.0.0)
+    faraday-retry (1.0.4)
     git (1.13.0)
       addressable (~> 2.8)
       rchardet (~> 1.8)
-    github_api (0.4.10)
-      faraday (~> 0.7.6)
-      hashie (~> 1.2.0)
-      multi_json (~> 1.0)
-      oauth2 (~> 0.5.2)
-    hashie (1.2.0)
+    github_api (0.19.0)
+      addressable (~> 2.4)
+      descendants_tracker (~> 0.0.4)
+      faraday (>= 0.8, < 2)
+      hashie (~> 3.5, >= 3.5.2)
+      oauth2 (~> 1.0)
+    hashie (3.6.0)
     highline (3.1.2)
       reline
     io-console (0.8.2)
@@ -32,20 +57,27 @@ GEM
       rake
       rdoc
       semver
+    jwt (2.10.2)
+      base64
     mini_portile2 (2.8.9)
-    multi_json (1.0.4)
-    multipart-post (1.2.0)
+    multi_json (1.19.1)
+    multi_xml (0.8.1)
+      bigdecimal (>= 3.1, < 5)
+    multipart-post (2.4.1)
     nokogiri (1.19.2)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
-    oauth2 (0.5.2)
-      faraday (~> 0.7)
-      multi_json (~> 1.0)
+    oauth2 (1.4.11)
+      faraday (>= 0.17.3, < 3.0)
+      jwt (>= 1.0, < 3.0)
+      multi_json (~> 1.3)
+      multi_xml (~> 0.5)
+      rack (>= 1.2, < 4)
     psych (5.1.2)
       stringio
     public_suffix (7.0.5)
     racc (1.8.1)
-    rack (1.6.13)
+    rack (2.2.23)
     rake (0.9.2.2)
     rchardet (1.8.0)
     rdoc (6.6.3.1)
@@ -65,12 +97,16 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-support (3.13.7)
+    ruby2_keywords (0.0.5)
     semver (1.0.1)
-    simplecov (0.5.4)
-      multi_json (~> 1.0.3)
-      simplecov-html (~> 0.5.3)
-    simplecov-html (0.5.3)
+    simplecov (0.22.0)
+      docile (~> 1.1)
+      simplecov-html (~> 0.11)
+      simplecov_json_formatter (~> 0.1)
+    simplecov-html (0.13.2)
+    simplecov_json_formatter (0.1.4)
     stringio (3.1.0)
+    thread_safe (0.3.6)
     webrick (1.9.2)
     xmlrpc (0.3.3)
       webrick