diff --git a/Gemfile b/Gemfile
index fec62ee7f..00e2af737 100644
--- a/Gemfile
+++ b/Gemfile
@@ -44,6 +44,7 @@ gem 'unicode_utils'
 # Gestion des comptes utilisateurs
 gem 'devise'
 gem 'openid_connect'
+gem 'omniauth-github'
 
 gem 'rest-client'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 994f844f5..4e7551cd9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -357,6 +357,7 @@ GEM
       url_safe_base64
     jsonapi (0.1.1.beta2)
       json (~> 1.8)
+    jwt (1.5.6)
     kaminari (0.17.0)
       actionpack (>= 3.0.0)
       activesupport (>= 3.0.0)
@@ -396,6 +397,7 @@ GEM
     mini_portile2 (2.3.0)
     minitest (5.10.3)
     multi_json (1.12.1)
+    multi_xml (0.6.0)
     multipart-post (2.0.0)
     mustermann (1.0.1)
     nenv (0.3.0)
@@ -406,6 +408,21 @@ GEM
     notiffany (0.1.1)
       nenv (~> 0.1)
       shellany (~> 0.0)
+    oauth2 (1.4.0)
+      faraday (>= 0.8, < 0.13)
+      jwt (~> 1.0)
+      multi_json (~> 1.3)
+      multi_xml (~> 0.5)
+      rack (>= 1.2, < 3)
+    omniauth (1.7.1)
+      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)
     open4 (1.3.4)
     openid_connect (0.12.0)
       activemodel
@@ -720,6 +737,7 @@ DEPENDENCIES
   mailjet
   maruku
   mina!
+  omniauth-github
   openid_connect
   openstack
   pg