diff --git a/README.rst b/README.rst
index 505bbf85..11673310 100644
--- a/README.rst
+++ b/README.rst
@@ -6,7 +6,7 @@
 
 :Version: 4.1.0
 :Web: http://kombu.me/
-:Download: http://pypi.python.org/pypi/kombu/
+:Download: https://pypi.python.org/pypi/kombu/
 :Source: https://github.com/celery/kombu/
 :Keywords: messaging, amqp, rabbitmq, redis, mongodb, python, queue
 
diff --git a/docs/reference/kombu.serialization.rst b/docs/reference/kombu.serialization.rst
index 66ca178d..9d58399e 100644
--- a/docs/reference/kombu.serialization.rst
+++ b/docs/reference/kombu.serialization.rst
@@ -43,9 +43,9 @@
 
     .. autodata:: registry
 
-.. _`cjson`: http://pypi.python.org/pypi/python-cjson/
-.. _`simplejson`: http://code.google.com/p/simplejson/
-.. _`Python 2.6+`: http://docs.python.org/library/json.html
-.. _`PyYAML`: http://pyyaml.org/
-.. _`msgpack`: http://msgpack.sourceforge.net/
-.. _`msgpack-python`: http://pypi.python.org/pypi/msgpack-python/
+.. _`cjson`: https://pypi.python.org/pypi/python-cjson/
+.. _`simplejson`: https://github.com/simplejson/simplejson
+.. _`Python 2.7+`: https://docs.python.org/library/json.html
+.. _`PyYAML`: https://pyyaml.org/
+.. _`msgpack`: https://msgpack.org/
+.. _`msgpack-python`: https://pypi.python.org/pypi/msgpack-python/
diff --git a/docs/userguide/serialization.rst b/docs/userguide/serialization.rst
index e63b743a..711bedd9 100644
--- a/docs/userguide/serialization.rst
+++ b/docs/userguide/serialization.rst
@@ -28,7 +28,7 @@ The accept argument can also include MIME-types.
 
 .. _`JSON`: http://www.json.org/
 .. _`YAML`: http://yaml.org/
-.. _`msgpack`: http://msgpack.sourceforge.net/
+.. _`msgpack`: https://msgpack.org/
 
 Each option has its advantages and disadvantages.