diff --git a/Gemfile b/Gemfile
index b5ee020..1ffb68c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -89,6 +89,12 @@ gem 'pundit', '~> 2.0'
 # for performing complex user interactions.
 gem 'interactor', '~> 3.1'
 
+# A generalized Rack framework for multiple-provider authentication.
+gem 'omniauth', '~> 1.8'
+
+# Official OmniAuth strategy for GitHub.
+gem 'omniauth-github', '~> 1.3'
+
 group :development, :test do
   # factory_bot provides a framework and DSL for defining and using factories.
   gem 'factory_bot_rails', '~> 4.10'
diff --git a/Gemfile.lock b/Gemfile.lock
index 4191f68..eb25e7e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -150,6 +150,7 @@ GEM
     gherkin (5.1.0)
     globalid (0.4.1)
       activesupport (>= 4.2.0)
+    hashie (3.5.7)
     http-cookie (1.0.3)
       domain_name (~> 0.5)
     i18n (1.1.1)
@@ -161,6 +162,7 @@ GEM
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
     json (2.1.0)
+    jwt (2.1.0)
     launchy (2.4.3)
       addressable (~> 2.3)
     letter_opener (1.6.0)
@@ -190,6 +192,7 @@ GEM
     msgpack (1.2.4)
     multi_json (1.13.1)
     multi_test (0.1.2)
+    multi_xml (0.6.0)
     multipart-post (2.0.0)
     net-scp (1.2.1)
       net-ssh (>= 2.6.5)
@@ -198,6 +201,21 @@ GEM
     nio4r (2.3.1)
     nokogiri (1.8.5)
       mini_portile2 (~> 2.3.0)
+    oauth2 (1.4.1)
+      faraday (>= 0.8, < 0.16.0)
+      jwt (>= 1.0, < 3.0)
+      multi_json (~> 1.3)
+      multi_xml (~> 0.5)
+      rack (>= 1.2, < 3)
+    omniauth (1.8.1)
+      hashie (>= 3.4.6, < 3.6.0)
+      rack (>= 1.6.2, < 3)
+    omniauth-github (1.3.0)
+      omniauth (~> 1.5)
+      omniauth-oauth2 (>= 1.4.0, < 2.0)
+    omniauth-oauth2 (1.5.0)
+      oauth2 (~> 1.1)
+      omniauth (~> 1.2)
     orm_adapter (0.5.0)
     parallel (1.12.1)
     parser (2.5.3.0)
@@ -389,6 +407,8 @@ DEPENDENCIES
   letter_opener (~> 1.6)
   listen (>= 3.0.5, < 3.2)
   mini_racer
+  omniauth (~> 1.8)
+  omniauth-github (~> 1.3)
   pg (>= 0.18, < 2.0)
   pry-rails (~> 0.3)
   puma (~> 3.11)
diff --git a/app/models/user.rb b/app/models/user.rb
index c45a16a..fd8d470 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -5,13 +5,14 @@ class User < ApplicationRecord
     :confirmable,
     :database_authenticatable,
     :lockable,
-    # :omniauthable,
+    :omniauthable,
     :recoverable,
     :registerable,
     :rememberable,
     :timeoutable,
     :trackable,
     :validatable,
+    omniauth_providers: %i[github],
   )
 
   belongs_to :account
diff --git a/config/credentials.yml.enc b/config/credentials.yml.enc
index 8428fc0..c76590a 100644
--- a/config/credentials.yml.enc
+++ b/config/credentials.yml.enc
@@ -1 +1 @@
-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--v1aV0kZzjF/Kzvj2--xwpZ+D0K6fM0SquHxUblbw==
\ No newline at end of file
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--Xc6ZkG4UOWIfxC8F--T8lW8mV3EQqct2DZugcELw==
\ No newline at end of file
diff --git a/config/initializers/devise.rb b/config/initializers/devise.rb
index f77fbb6..b581427 100644
--- a/config/initializers/devise.rb
+++ b/config/initializers/devise.rb
@@ -260,7 +260,10 @@ Devise.setup do |config|
   # ==> OmniAuth
   # Add a new OmniAuth provider. Check the wiki for more information on setting
   # up on your models and hooks.
-  # config.omniauth :github, 'APP_ID', 'APP_SECRET', scope: 'user,public_repo'
+  config.omniauth :github,
+                  Rails.application.credentials.github[:client_id],
+                  Rails.application.credentials.github[:client_secret],
+                  scope: 'user,public_repo'
 
   # ==> Warden configuration
   # If you want to use other strategies, that are not supported by Devise, or