diff --git a/Gemfile.lock b/Gemfile.lock
index f0e40fb..712aae1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -62,7 +62,7 @@ GEM
     annotate (2.6.5)
       activerecord (>= 2.3.0)
       rake (>= 0.8.7)
-    arbre (1.0.2)
+    arbre (1.1.1)
       activesupport (>= 3.0.0)
     arel (6.0.4)
     ast (2.3.0)
@@ -72,7 +72,7 @@ GEM
     babel-transpiler (0.7.0)
       babel-source (>= 4.0, < 6)
       execjs (~> 2.0)
-    bcrypt (3.1.11)
+    bcrypt (3.1.13)
     bootstrap-sass (3.3.7)
       autoprefixer-rails (>= 5.2.1)
       sass (>= 3.3.4)
@@ -106,12 +106,12 @@ GEM
     coffee-script-source (1.12.2)
     concurrent-ruby (1.0.5)
     configatron (4.5.1)
-    crass (1.0.2)
+    crass (1.0.5)
     database_cleaner (1.6.1)
-    devise (4.3.0)
+    devise (4.7.1)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
-      railties (>= 4.1.0, < 5.2)
+      railties (>= 4.1.0)
       responders
       warden (~> 1.2.3)
     diff-lcs (1.3)
@@ -148,7 +148,8 @@ GEM
       actionpack (>= 4.1, < 5.2)
       activesupport (>= 4.1, < 5.2)
     hashie (3.5.6)
-    i18n (0.8.6)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     inherited_resources (1.7.2)
       actionpack (>= 3.2, < 5.2.x)
       has_scope (~> 0.6)
@@ -177,7 +178,7 @@ GEM
       addressable (~> 2.3)
     letter_opener (1.4.1)
       launchy (~> 2.2)
-    loofah (2.1.1)
+    loofah (2.3.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.6.6)
@@ -190,15 +191,15 @@ GEM
     mimemagic (0.3.2)
     mini_magick (4.8.0)
     mini_mime (0.1.4)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.4.0)
     minitest (5.10.3)
     momentjs-rails (2.17.1)
       railties (>= 3.1)
     multi_json (1.12.2)
     multi_xml (0.6.0)
     multipart-post (2.0.0)
-    nokogiri (1.8.1)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.9.1)
+      mini_portile2 (~> 2.4.0)
     oauth (0.5.3)
     oauth2 (1.4.0)
       faraday (>= 0.8, < 0.13)
@@ -240,7 +241,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     puma (3.10.0)
-    rack (1.6.8)
+    rack (1.6.11)
     rack-mini-profiler (0.10.5)
       rack (>= 1.2.0)
     rack-test (0.6.3)
@@ -258,12 +259,12 @@ GEM
       sprockets-rails
     rails-deprecated_sanitizer (1.0.3)
       activesupport (>= 4.2.0.alpha)
-    rails-dom-testing (1.0.8)
-      activesupport (>= 4.2.0.beta, < 5.0)
+    rails-dom-testing (1.0.9)
+      activesupport (>= 4.2.0, < 5.0)
       nokogiri (~> 1.6)
       rails-deprecated_sanitizer (>= 1.0.1)
-    rails-html-sanitizer (1.0.3)
-      loofah (~> 2.0)
+    rails-html-sanitizer (1.3.0)
+      loofah (~> 2.3)
     rails_12factor (0.0.3)
       rails_serve_static_assets
       rails_stdout_logging
@@ -276,7 +277,7 @@ GEM
       thor (>= 0.18.1, < 2.0)
     rainbow (2.2.2)
       rake
-    rake (12.1.0)
+    rake (13.0.0)
     ransack (1.8.4)
       actionpack (>= 3.0)
       activerecord (>= 3.0)
@@ -287,9 +288,9 @@ GEM
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
     redcarpet (3.4.0)
-    responders (2.4.0)
-      actionpack (>= 4.2.0, < 5.3)
-      railties (>= 4.2.0, < 5.3)
+    responders (2.4.1)
+      actionpack (>= 4.2.0, < 6.0)
+      railties (>= 4.2.0, < 6.0)
     rspec (3.6.0)
       rspec-core (~> 3.6.0)
       rspec-expectations (~> 3.6.0)
@@ -361,10 +362,10 @@ GEM
       sprockets (>= 3.0.0)
     sqlite3 (1.3.13)
     terminal-notifier (1.8.0)
-    thor (0.20.0)
+    thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.0.8)
-    tzinfo (1.2.3)
+    tzinfo (1.2.5)
       thread_safe (~> 0.1)
     uglifier (3.2.0)
       execjs (>= 0.3.0, < 3)