diff --git a/Gemfile.lock b/Gemfile.lock
index 9573a1f..139cd09 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,22 +1,22 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.3.5)
+    addressable (2.7.0)
+      public_suffix (>= 2.0.2, < 5.0)
     builder (3.2.2)
-    descendants_tracker (0.0.3)
+    descendants_tracker (0.0.4)
+      thread_safe (~> 0.3, >= 0.3.1)
     diff-lcs (1.2.5)
-    faraday (0.9.0)
+    faraday (0.17.1)
       multipart-post (>= 1.2, < 3)
     git (1.2.6)
-    github_api (0.11.2)
-      addressable (~> 2.3)
-      descendants_tracker (~> 0.0.1)
-      faraday (~> 0.8, < 0.10)
-      hashie (>= 1.2)
-      multi_json (>= 1.7.5, < 2.0)
-      nokogiri (~> 1.6.0)
-      oauth2
-    hashie (2.0.5)
+    github_api (0.18.2)
+      addressable (~> 2.4)
+      descendants_tracker (~> 0.0.4)
+      faraday (~> 0.8)
+      hashie (~> 3.5, >= 3.5.2)
+      oauth2 (~> 1.0)
+    hashie (3.6.0)
     highline (1.6.20)
     jeweler (2.0.1)
       builder
@@ -28,21 +28,23 @@ GEM
       rake
       rdoc
     json (1.8.1)
-    jwt (0.1.11)
-      multi_json (>= 1.5)
-    mini_portile (0.5.2)
-    multi_json (1.8.4)
-    multi_xml (0.5.5)
-    multipart-post (2.0.0)
-    nokogiri (1.6.1-x86-mingw32)
-      mini_portile (~> 0.5.0)
-    oauth2 (0.9.3)
-      faraday (>= 0.8, < 0.10)
-      jwt (~> 0.1.8)
+    jwt (2.2.1)
+    mini_portile2 (2.4.0)
+    multi_json (1.14.1)
+    multi_xml (0.6.0)
+    multipart-post (2.1.1)
+    nokogiri (1.10.7)
+      mini_portile2 (~> 2.4.0)
+    nokogiri (1.10.7-x86-mingw32)
+      mini_portile2 (~> 2.4.0)
+    oauth2 (1.4.2)
+      faraday (>= 0.8, < 2.0)
+      jwt (>= 1.0, < 3.0)
       multi_json (~> 1.3)
       multi_xml (~> 0.5)
-      rack (~> 1.2)
-    rack (1.5.2)
+      rack (>= 1.2, < 3)
+    public_suffix (4.0.1)
+    rack (2.0.8)
     rake (10.1.1)
     rake-compiler (0.9.2)
       rake
@@ -56,8 +58,10 @@ GEM
     rspec-expectations (2.14.5)
       diff-lcs (>= 1.1.3, < 2.0)
     rspec-mocks (2.14.5)
+    thread_safe (0.3.6)
 
 PLATFORMS
+  ruby
   x86-mingw32
 
 DEPENDENCIES