diff --git a/app/helpers/Content/Category/DesignCategory.php b/app/helpers/Content/Category/DesignCategory.php
index ce1af47bc..7cd628c04 100644
--- a/app/helpers/Content/Category/DesignCategory.php
+++ b/app/helpers/Content/Category/DesignCategory.php
@@ -27,7 +27,7 @@ public function getItems()
     {
         return [
             new Guide('design-introduction'),
-            new RemoteLink('How to create a custom theme', 'http://piwik.org/blog/2014/08/create-custom-theme-piwik-introducing-piwik-platform/'),
+            new RemoteLink('How to create a custom theme', 'https://piwik.org/blog/2014/08/create-custom-theme-piwik-introducing-piwik-platform/'),
             new Guide('theming'),
         ];
     }
diff --git a/app/helpers/Content/Category/DevelopInDepthCategory.php b/app/helpers/Content/Category/DevelopInDepthCategory.php
index 68904c2f2..d04b3d603 100644
--- a/app/helpers/Content/Category/DevelopInDepthCategory.php
+++ b/app/helpers/Content/Category/DevelopInDepthCategory.php
@@ -33,7 +33,7 @@ public function getItems()
             new EmptySubCategory('Piwik Core development', [
                 new Guide('contributing-to-piwik-core'),
                 new Guide('core-team-workflow'),
-                new RemoteLink('Piwik\'s Roadmap', 'http://piwik.org/roadmap/'),
+                new RemoteLink('Piwik\'s Roadmap', 'https://piwik.org/roadmap/'),
             ]),
             new DevelopCategory(),
         ];