Index: app/helpers/application_helper.rb
===================================================================
--- app/helpers/application_helper.rb	(revision 14396)
+++ app/helpers/application_helper.rb	(working copy)
@@ -1254,7 +1254,7 @@
   # Returns a link to edit user's avatar if avatars are enabled
   def avatar_edit_link(user, options={})
     if Setting.gravatar_enabled?
-      url = "http://gravatar.com"
+      url = "https://gravatar.com"
       link_to avatar(user, {:title => l(:button_edit)}.merge(options)), url, :target => '_blank'
     end
   end
Index: lib/redmine/info.rb
===================================================================
--- lib/redmine/info.rb	(revision 14396)
+++ lib/redmine/info.rb	(working copy)
@@ -2,8 +2,8 @@
   module Info
     class << self
       def app_name; 'Redmine' end
-      def url; 'http://www.redmine.org/' end
-      def help_url; 'http://www.redmine.org/guide' end
+      def url; 'https://www.redmine.org/' end
+      def help_url; 'https://www.redmine.org/guide' end
       def versioned_name; "#{app_name} #{Redmine::VERSION}" end
 
       def environment