diff --git a/best_practices/templates.rst b/best_practices/templates.rst
index 4bfe1f05899..4f2c50c8e78 100644
--- a/best_practices/templates.rst
+++ b/best_practices/templates.rst
@@ -153,4 +153,4 @@ be used as a Twig extension.
 Next: :doc:`/best_practices/forms`
 
 .. _`Twig`: https://twig.symfony.com/
-.. _`Parsedown`: http://parsedown.org/
+.. _`Parsedown`: https://parsedown.org/
diff --git a/components/console/events.rst b/components/console/events.rst
index 34e9eaa6ba7..fa83e10189c 100644
--- a/components/console/events.rst
+++ b/components/console/events.rst
@@ -169,4 +169,4 @@ Listeners receive a
     It is then dispatched just after the ``ConsoleEvents::ERROR`` event.
     The exit code received in this case is the exception code.
 
-.. _`reserved exit codes`: http://www.tldp.org/LDP/abs/html/exitcodes.html
+.. _`reserved exit codes`: https://www.tldp.org/LDP/abs/html/exitcodes.html
diff --git a/console/coloring.rst b/console/coloring.rst
index a5b3adf8dfa..561335e533f 100644
--- a/console/coloring.rst
+++ b/console/coloring.rst
@@ -74,7 +74,7 @@ You can also set these colors and options directly inside the tagname::
     or use the :method:`Symfony\\Component\\Console\\Formatter\\OutputFormatter::escape`
     method to escape all the tags included in the given string.
 
-.. _Cmder: http://cmder.net/
+.. _Cmder: https://cmder.net/
 .. _ConEmu: https://conemu.github.io/
 .. _ANSICON: https://github.com/adoxa/ansicon/releases
 .. _Mintty: https://mintty.github.io/
diff --git a/doctrine/reverse_engineering.rst b/doctrine/reverse_engineering.rst
index 4c2aa04717f..0a48e98c7d2 100644
--- a/doctrine/reverse_engineering.rst
+++ b/doctrine/reverse_engineering.rst
@@ -169,4 +169,4 @@ entity in the ``BlogComment`` entity class.
 
 The generated entities are now ready to be used. Have fun!
 
-.. _`Doctrine tools documentation`: http://docs.doctrine-project.org/projects/doctrine-orm/en/latest/reference/tools.html#reverse-engineering
+.. _`Doctrine tools documentation`: https://www.doctrine-project.org/projects/doctrine-orm/en/latest/reference/tools.html#reverse-engineering