diff --git a/Gemfile.lock b/Gemfile.lock
index 50cbde23..00fd36cc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -59,7 +59,8 @@ GEM
       activerecord (>= 3.0)
       activesupport (>= 3.0)
       awesome_nested_set (>= 2.0)
-    addressable (2.4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     ansi (1.5.0)
     arel (6.0.4)
     autoparse (0.3.3)
@@ -693,11 +694,11 @@ GEM
       railties (>= 3.1.0)
       sass (>= 3.2.0)
     git (1.3.0)
-    github_api (0.14.5)
-      addressable (~> 2.4.0)
+    github_api (0.19.0)
+      addressable (~> 2.4)
       descendants_tracker (~> 0.0.4)
-      faraday (~> 0.8, < 0.10)
-      hashie (>= 3.4)
+      faraday (>= 0.8, < 2)
+      hashie (~> 3.5, >= 3.5.2)
       oauth2 (~> 1.0)
     globalid (0.4.1)
       activesupport (>= 4.2.0)
@@ -723,7 +724,7 @@ GEM
     haml (4.1.0.beta.1)
       tilt
     hashdiff (0.2.2)
-    hashie (3.4.6)
+    hashie (3.6.0)
     highline (1.7.8)
     hike (1.2.3)
     http (0.6.2)
@@ -796,7 +797,9 @@ GEM
       railties (>= 3.0.0, < 5.0.0)
     method_source (0.8.2)
     mime-types (2.99.3)
-    mimemagic (0.3.2)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.0)
     mini_portile2 (2.3.0)
     minitest (5.11.3)
@@ -811,9 +814,9 @@ GEM
     mlanett-redis-lock (0.2.7)
       redis
     msgpack (1.0.0)
-    multi_json (1.13.1)
-    multi_xml (0.5.5)
-    multipart-post (2.0.0)
+    multi_json (1.15.0)
+    multi_xml (0.6.0)
+    multipart-post (2.2.3)
     naught (1.0.0)
     nested_form (0.3.2)
     net-http-persistent (2.9.4)
@@ -821,9 +824,9 @@ GEM
     nokogiri (1.8.4)
       mini_portile2 (~> 2.3.0)
     oauth (0.5.1)
-    oauth2 (1.2.0)
-      faraday (>= 0.8, < 0.10)
-      jwt (~> 1.0)
+    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, < 3)
@@ -845,9 +848,10 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
+    public_suffix (5.0.0)
     quiet_assets (1.1.0)
       railties (>= 3.1, < 5.0)
-    rack (1.6.10)
+    rack (1.6.13)
     rack-contrib (1.1.0)
       rack (>= 0.9.1)
     rack-mini-profiler (0.10.7)