diff --git a/Changelog b/Changelog
index 4f183c6f..46a07eb8 100644
--- a/Changelog
+++ b/Changelog
@@ -1923,7 +1923,7 @@ SQS: Now supports long polling (Issue #176).
           as a pure-python replacement in environments where rabbitmq-c cannot
           be compiled.
 
-    .. _`py-amqp`: http://amqp.readthedocs.org/
+    .. _`py-amqp`: https://amqp.readthedocs.io/
 
     If you start using use py-amqp instead of amqplib you can enjoy many
     advantages including:
diff --git a/README.rst b/README.rst
index 9898c11f..630ff78d 100644
--- a/README.rst
+++ b/README.rst
@@ -134,7 +134,7 @@ Documentation
 
 Kombu is using Sphinx, and the latest documentation can be found here:
 
-    http://kombu.readthedocs.org/
+    https://kombu.readthedocs.io/
 
 Quick overview
 --------------
diff --git a/docs/includes/introduction.txt b/docs/includes/introduction.txt
index 3f39cb73..dba1a860 100644
--- a/docs/includes/introduction.txt
+++ b/docs/includes/introduction.txt
@@ -129,7 +129,7 @@ Documentation
 
 Kombu is using Sphinx, and the latest documentation can be found here:
 
-    http://kombu.readthedocs.org/
+    https://kombu.readthedocs.io/
 
 Quick overview
 --------------
diff --git a/kombu/__init__.py b/kombu/__init__.py
index 35e464f0..f1663b47 100644
--- a/kombu/__init__.py
+++ b/kombu/__init__.py
@@ -14,7 +14,7 @@ VERSION = version_info = version_info_t(4, 0, 0, 'a1', '')
 __version__ = '{0.major}.{0.minor}.{0.micro}{0.releaselevel}'.format(VERSION)
 __author__ = 'Ask Solem'
 __contact__ = 'ask@celeryproject.org'
-__homepage__ = 'http://kombu.readthedocs.org'
+__homepage__ = 'https://kombu.readthedocs.io'
 __docformat__ = 'restructuredtext en'
 
 # -eof meta-
diff --git a/kombu/transport/zookeeper.py b/kombu/transport/zookeeper.py
index 9784a087..6cf5925e 100644
--- a/kombu/transport/zookeeper.py
+++ b/kombu/transport/zookeeper.py
@@ -18,7 +18,7 @@ This uses the built-in kazoo recipe for queues
 **References**
 
 - https://zookeeper.apache.org/doc/trunk/recipes.html#sc_recipes_Queues
-- https://kazoo.readthedocs.org/en/latest/api/recipe/queue.html
+- https://kazoo.readthedocs.io/en/latest/api/recipe/queue.html
 
 **Limitations**
 This queue does not offer reliable consumption. An entry is removed from