diff --git a/Gemfile b/Gemfile
index cacef2d..d8c9722 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
-gem 'rails', '3.2.13'
+gem 'rails', '5.2.6.2'
 
 # Bundle edge Rails instead:
 # gem 'rails', :git => 'git://github.com/rails/rails.git'
@@ -11,8 +11,8 @@ gem 'sqlite3'
 # Gems used only for assets and not required
 # in production environments by default.
 group :assets do
-  gem 'sass-rails',   '~> 3.2.3'
-  gem 'coffee-rails', '~> 3.2.1'
+  gem 'sass-rails', '~> 5.0.5'
+  gem 'coffee-rails', '~> 4.2.2'
 
   # See https://github.com/sstephenson/execjs#readme for more supported runtimes
   # gem 'therubyracer', :platforms => :ruby
@@ -20,7 +20,7 @@ group :assets do
   gem 'uglifier', '>= 1.0.3'
 end
 
-gem 'jquery-rails'
+gem 'jquery-rails', '>= 4.0.1'
 
 # To use ActiveModel has_secure_password
 # gem 'bcrypt-ruby', '~> 3.0.0'
@@ -36,4 +36,4 @@ gem 'jquery-rails'
 
 # To use debugger
 # gem 'debugger'
-gem 'devise'
\ No newline at end of file
+gem 'devise', '>= 4.4.2'
\ No newline at end of file
diff --git a/Gemfile.lock b/Gemfile.lock
index d7387ba..82fdd6b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,122 +1,171 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    actionmailer (3.2.13)
-      actionpack (= 3.2.13)
-      mail (~> 2.5.3)
-    actionpack (3.2.13)
-      activemodel (= 3.2.13)
-      activesupport (= 3.2.13)
-      builder (~> 3.0.0)
-      erubis (~> 2.7.0)
-      journey (~> 1.0.4)
-      rack (~> 1.4.5)
-      rack-cache (~> 1.2)
-      rack-test (~> 0.6.1)
-      sprockets (~> 2.2.1)
-    activemodel (3.2.13)
-      activesupport (= 3.2.13)
-      builder (~> 3.0.0)
-    activerecord (3.2.13)
-      activemodel (= 3.2.13)
-      activesupport (= 3.2.13)
-      arel (~> 3.0.2)
-      tzinfo (~> 0.3.29)
-    activeresource (3.2.13)
-      activemodel (= 3.2.13)
-      activesupport (= 3.2.13)
-    activesupport (3.2.13)
-      i18n (= 0.6.1)
-      multi_json (~> 1.0)
-    arel (3.0.2)
-    bcrypt-ruby (3.0.1)
-    builder (3.0.4)
-    coffee-rails (3.2.2)
+    actioncable (5.2.6.2)
+      actionpack (= 5.2.6.2)
+      nio4r (~> 2.0)
+      websocket-driver (>= 0.6.1)
+    actionmailer (5.2.6.2)
+      actionpack (= 5.2.6.2)
+      actionview (= 5.2.6.2)
+      activejob (= 5.2.6.2)
+      mail (~> 2.5, >= 2.5.4)
+      rails-dom-testing (~> 2.0)
+    actionpack (5.2.6.2)
+      actionview (= 5.2.6.2)
+      activesupport (= 5.2.6.2)
+      rack (~> 2.0, >= 2.0.8)
+      rack-test (>= 0.6.3)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.0, >= 1.0.2)
+    actionview (5.2.6.2)
+      activesupport (= 5.2.6.2)
+      builder (~> 3.1)
+      erubi (~> 1.4)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.0, >= 1.0.3)
+    activejob (5.2.6.2)
+      activesupport (= 5.2.6.2)
+      globalid (>= 0.3.6)
+    activemodel (5.2.6.2)
+      activesupport (= 5.2.6.2)
+    activerecord (5.2.6.2)
+      activemodel (= 5.2.6.2)
+      activesupport (= 5.2.6.2)
+      arel (>= 9.0)
+    activestorage (5.2.6.2)
+      actionpack (= 5.2.6.2)
+      activerecord (= 5.2.6.2)
+      marcel (~> 1.0.0)
+    activesupport (5.2.6.2)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (>= 0.7, < 2)
+      minitest (~> 5.1)
+      tzinfo (~> 1.1)
+    arel (9.0.0)
+    bcrypt (3.1.16)
+    builder (3.2.4)
+    coffee-rails (4.2.2)
       coffee-script (>= 2.2.0)
-      railties (~> 3.2.0)
-    coffee-script (2.2.0)
+      railties (>= 4.0.0)
+    coffee-script (2.4.1)
       coffee-script-source
       execjs
-    coffee-script-source (1.6.2)
-    devise (2.2.3)
-      bcrypt-ruby (~> 3.0)
+    coffee-script-source (1.12.2)
+    concurrent-ruby (1.1.9)
+    crass (1.0.6)
+    devise (4.8.1)
+      bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
-      railties (~> 3.1)
-      warden (~> 1.2.1)
-    erubis (2.7.0)
-    execjs (1.4.0)
-      multi_json (~> 1.0)
-    hike (1.2.1)
-    i18n (0.6.1)
-    journey (1.0.4)
-    jquery-rails (2.2.1)
-      railties (>= 3.0, < 5.0)
+      railties (>= 4.1.0)
+      responders
+      warden (~> 1.2.3)
+    erubi (1.10.0)
+    execjs (2.8.1)
+    ffi (1.15.5)
+    globalid (1.0.0)
+      activesupport (>= 5.0)
+    i18n (1.9.1)
+      concurrent-ruby (~> 1.0)
+    jquery-rails (4.4.0)
+      rails-dom-testing (>= 1, < 3)
+      railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    json (1.7.7)
-    mail (2.5.3)
-      i18n (>= 0.4.0)
-      mime-types (~> 1.16)
-      treetop (~> 1.4.8)
-    mime-types (1.21)
-    multi_json (1.7.2)
-    orm_adapter (0.4.0)
-    polyglot (0.3.3)
-    rack (1.4.5)
-    rack-cache (1.2)
-      rack (>= 0.4)
-    rack-ssl (1.3.3)
-      rack
-    rack-test (0.6.2)
-      rack (>= 1.0)
-    rails (3.2.13)
-      actionmailer (= 3.2.13)
-      actionpack (= 3.2.13)
-      activerecord (= 3.2.13)
-      activeresource (= 3.2.13)
-      activesupport (= 3.2.13)
-      bundler (~> 1.0)
-      railties (= 3.2.13)
-    railties (3.2.13)
-      actionpack (= 3.2.13)
-      activesupport (= 3.2.13)
-      rack-ssl (~> 1.3.2)
+    loofah (2.14.0)
+      crass (~> 1.0.2)
+      nokogiri (>= 1.5.9)
+    mail (2.7.1)
+      mini_mime (>= 0.1.1)
+    marcel (1.0.2)
+    method_source (1.0.0)
+    mini_mime (1.1.2)
+    mini_portile2 (2.7.1)
+    minitest (5.15.0)
+    multi_json (1.15.0)
+    nio4r (2.5.8)
+    nokogiri (1.13.1)
+      mini_portile2 (~> 2.7.0)
+      racc (~> 1.4)
+    orm_adapter (0.5.0)
+    racc (1.6.0)
+    rack (2.2.3)
+    rack-test (1.1.0)
+      rack (>= 1.0, < 3)
+    rails (5.2.6.2)
+      actioncable (= 5.2.6.2)
+      actionmailer (= 5.2.6.2)
+      actionpack (= 5.2.6.2)
+      actionview (= 5.2.6.2)
+      activejob (= 5.2.6.2)
+      activemodel (= 5.2.6.2)
+      activerecord (= 5.2.6.2)
+      activestorage (= 5.2.6.2)
+      activesupport (= 5.2.6.2)
+      bundler (>= 1.3.0)
+      railties (= 5.2.6.2)
+      sprockets-rails (>= 2.0.0)
+    rails-dom-testing (2.0.3)
+      activesupport (>= 4.2.0)
+      nokogiri (>= 1.6)
+    rails-html-sanitizer (1.4.2)
+      loofah (~> 2.3)
+    railties (5.2.6.2)
+      actionpack (= 5.2.6.2)
+      activesupport (= 5.2.6.2)
+      method_source
       rake (>= 0.8.7)
-      rdoc (~> 3.4)
-      thor (>= 0.14.6, < 2.0)
-    rake (10.0.4)
-    rdoc (3.12.2)
-      json (~> 1.4)
-    sass (3.2.7)
-    sass-rails (3.2.6)
-      railties (~> 3.2.0)
-      sass (>= 3.1.10)
-      tilt (~> 1.3)
-    sprockets (2.2.2)
-      hike (~> 1.2)
-      multi_json (~> 1.0)
-      rack (~> 1.0)
-      tilt (~> 1.1, != 1.3.0)
+      thor (>= 0.19.0, < 2.0)
+    rake (13.0.6)
+    rb-fsevent (0.11.1)
+    rb-inotify (0.10.1)
+      ffi (~> 1.0)
+    responders (3.0.1)
+      actionpack (>= 5.0)
+      railties (>= 5.0)
+    sass (3.7.4)
+      sass-listen (~> 4.0.0)
+    sass-listen (4.0.0)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
+    sass-rails (5.0.8)
+      railties (>= 5.2.0)
+      sass (~> 3.1)
+      sprockets (>= 2.8, < 4.0)
+      sprockets-rails (>= 2.0, < 4.0)
+      tilt (>= 1.1, < 3)
+    sprockets (3.7.2)
+      concurrent-ruby (~> 1.0)
+      rack (> 1, < 3)
+    sprockets-rails (3.4.2)
+      actionpack (>= 5.2)
+      activesupport (>= 5.2)
+      sprockets (>= 3.0.0)
     sqlite3 (1.3.7)
-    thor (0.18.0)
-    tilt (1.3.6)
-    treetop (1.4.12)
-      polyglot
-      polyglot (>= 0.3.1)
-    tzinfo (0.3.37)
+    thor (1.2.1)
+    thread_safe (0.3.6)
+    tilt (2.0.10)
+    tzinfo (1.2.9)
+      thread_safe (~> 0.1)
     uglifier (1.3.0)
       execjs (>= 0.3.0)
       multi_json (~> 1.0, >= 1.0.2)
-    warden (1.2.1)
-      rack (>= 1.0)
+    warden (1.2.9)
+      rack (>= 2.0.9)
+    websocket-driver (0.7.5)
+      websocket-extensions (>= 0.1.0)
+    websocket-extensions (0.1.5)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  coffee-rails (~> 3.2.1)
-  devise
-  jquery-rails
-  rails (= 3.2.13)
-  sass-rails (~> 3.2.3)
+  coffee-rails (~> 4.2.2)
+  devise (>= 4.4.2)
+  jquery-rails (>= 4.0.1)
+  rails (= 5.2.6.2)
+  sass-rails (~> 5.0.5)
   sqlite3
   uglifier (>= 1.0.3)
+
+BUNDLED WITH
+   2.1.4