diff --git a/app/controllers/admin/stylesheets_controller.rb b/app/controllers/admin/stylesheets_controller.rb
index f5b94e200..9c6812556 100644
--- a/app/controllers/admin/stylesheets_controller.rb
+++ b/app/controllers/admin/stylesheets_controller.rb
@@ -6,7 +6,7 @@ def show
 
   def create
     Stylesheet.temporary(current_account, params[:url]) do
-      redirect_to "/" + Stylesheet.capture("http://#{MY_DOMAIN}/", cookies)
+      redirect_to "/" + Stylesheet.capture("https://#{MY_DOMAIN}/", cookies)
     end
   end
 
diff --git a/app/helpers/atom_helper.rb b/app/helpers/atom_helper.rb
index 9a4e26e7f..fcf088c18 100644
--- a/app/helpers/atom_helper.rb
+++ b/app/helpers/atom_helper.rb
@@ -5,7 +5,7 @@ def atom_comments_link(content, url)
     str = <<-EOS
     <p>
       <strong>Commentaires :</strong>
-      <a href=\"//#{MY_DOMAIN}/nodes/#{content.node.id}/comments.atom\">voir le flux Atom</a>
+      <a href=\"https://#{MY_DOMAIN}/nodes/#{content.node.id}/comments.atom\">voir le flux Atom</a>
       <a href=\"#{url}#comments\">ouvrir dans le navigateur</a>
     </p>
     EOS
diff --git a/app/models/image.rb b/app/models/image.rb
index 0da45e59c..b47cb17c2 100644
--- a/app/models/image.rb
+++ b/app/models/image.rb
@@ -69,7 +69,7 @@ def src(type="img")
     return link if internal_link?
     return E403 if blacklisted?
     register_in_redis
-    "//#{IMG_DOMAIN}/#{type}/#{encoded_link}/#{filename}"
+    "https://#{IMG_DOMAIN}/#{type}/#{encoded_link}/#{filename}"
   end
 
   def src_attr
diff --git a/app/models/user.rb b/app/models/user.rb
index 7a65c9d84..708c6d1a6 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -89,7 +89,7 @@ def custom_avatar_url=(url)
   before_validation :validate_url
   def validate_url
     return if custom_avatar_url.blank?
-    return if custom_avatar_url.starts_with?("//")
+    return if custom_avatar_url.starts_with?("https://")
     errors.add(:url, "Adresse de téléchargement d’avatar non valide")
   end
 
diff --git a/app/uploaders/avatar_uploader.rb b/app/uploaders/avatar_uploader.rb
index 5d7228655..98c64d146 100644
--- a/app/uploaders/avatar_uploader.rb
+++ b/app/uploaders/avatar_uploader.rb
@@ -3,7 +3,7 @@
 class AvatarUploader < CarrierWave::Uploader::Base
 
   AVATAR_SIZE = 64
-  DEFAULT_AVATAR_URL = "//#{MY_DOMAIN}/images/default-avatar.svg"
+  DEFAULT_AVATAR_URL = "https://#{MY_DOMAIN}/images/default-avatar.svg"
 
   include CarrierWave::MiniMagick
   process resize_and_pad: [AVATAR_SIZE, AVATAR_SIZE]
@@ -13,7 +13,7 @@ def base_dir
   end
 
   def url
-    super.sub(base_dir.to_s, "//#{IMG_DOMAIN}")
+    super.sub(base_dir.to_s, "https://#{IMG_DOMAIN}")
   end
 
   def store_dir
diff --git a/app/uploaders/stylesheet_uploader.rb b/app/uploaders/stylesheet_uploader.rb
index 32fddaa9a..a265c5e79 100644
--- a/app/uploaders/stylesheet_uploader.rb
+++ b/app/uploaders/stylesheet_uploader.rb
@@ -6,7 +6,7 @@ def base_dir
   end
 
   def url
-    super.sub(base_dir.to_s, "//#{IMG_DOMAIN}")
+    super.sub(base_dir.to_s, "https://#{IMG_DOMAIN}")
   end
 
   def store_dir
diff --git a/app/views/stylesheets/edit.html.haml b/app/views/stylesheets/edit.html.haml
index 19fc17fe8..9983f3734 100644
--- a/app/views/stylesheets/edit.html.haml
+++ b/app/views/stylesheets/edit.html.haml
@@ -33,7 +33,7 @@
     Pour cela, il vous suffit de commencer votre feuille de style par la déclaration suivante :
 
   %pre
-    @import url("//#{MY_DOMAIN}/assets/application.css");
+    @import url("https://#{MY_DOMAIN}/assets/application.css");
 
   %div.sideforms
     = form_tag "/stylesheet", method: :put do