diff --git a/Gemfile.lock b/Gemfile.lock
index c264a72..f2812b1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,8 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.3.6)
+    addressable (2.8.7)
+      public_suffix (>= 2.0.2, < 7.0)
     backports (3.6.1)
     capistrano (2.15.5)
       highline
@@ -32,20 +33,18 @@ GEM
     execjs (2.0.2)
     faraday (0.9.0)
       multipart-post (>= 1.2, < 3)
-    github_api (0.11.3)
-      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 (3.1.0)
+    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 (1.6.21)
     hike (1.2.3)
     jwt (1.0.0)
     mime-types (2.3)
-    mini_portile (0.6.0)
+    mini_portile2 (2.8.8)
     multi_json (1.10.1)
     multi_xml (0.5.5)
     multipart-post (2.0.0)
@@ -56,14 +55,17 @@ GEM
     net-ssh (2.9.1)
     net-ssh-gateway (1.2.0)
       net-ssh (>= 2.6.5)
-    nokogiri (1.6.2.1)
-      mini_portile (= 0.6.0)
-    oauth2 (0.9.4)
-      faraday (>= 0.8, < 0.10)
-      jwt (~> 1.0)
+    nokogiri (1.18.3)
+      mini_portile2 (~> 2.8.2)
+      racc (~> 1.4)
+    oauth2 (1.4.8)
+      faraday (>= 0.8, < 3.0)
+      jwt (>= 1.0, < 3.0)
       multi_json (~> 1.3)
       multi_xml (~> 0.5)
-      rack (~> 1.2)
+      rack (>= 1.2, < 3)
+    public_suffix (6.0.1)
+    racc (1.8.1)
     rack (1.5.2)
     rack-protection (1.5.3)
       rack