diff --git a/README.md b/README.md
index eb5570f..7d519e7 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 ![PyPiVersion](https://badge.fury.io/py/pyaardvark.svg)
 ![Python versions](https://img.shields.io/pypi/pyversions/pyaardvark.svg)
 
-The [Total Phase](http://www.totalphase.com) Aardvark is an USB I²C/SPI
+The [Total Phase](https://www.totalphase.com) Aardvark is an USB I²C/SPI
 host adapter.
 
 ## Rationale
@@ -33,7 +33,7 @@ Instead, this binding tries to be more pythonic.
 ## Documentation
 
 You can find the most up to date documentation at:
-<http://pyaardvark.rtfd.org>
+<https://pyaardvark.rtfd.org>
 
 ## Requirements
 
@@ -59,7 +59,7 @@ send-email`), do a github pull request or just file an issue.
 If you are doing code changes or additions please:
 - respect the coding style (eg. PEP8),
 - provide well-formed commit message (see [this blog
-  post](http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html).)
+  post](https://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html).)
 - add a Signed-off-by line (eg. `git commit -s`)
 
 ## License
diff --git a/docs/defines.rst.inc b/docs/defines.rst.inc
index 5506222..a0911b0 100644
--- a/docs/defines.rst.inc
+++ b/docs/defines.rst.inc
@@ -1,2 +1,2 @@
-.. _Total Phase: http://www.totalphase.com
+.. _Total Phase: https://www.totalphase.com
 .. |I2C| replace:: I\ :sup:`2`\ C
diff --git a/setup.py b/setup.py
index 32ac2ba..e302527 100644
--- a/setup.py
+++ b/setup.py
@@ -42,7 +42,7 @@ def git_pep440_version():
         author = 'Michael Walle',
         author_email = 'michael.walle@kontron.com',
         packages = find_packages(),
-        url = 'http://github.com/kontron/python-aardvark',
+        url = 'https://github.com/kontron/python-aardvark',
         license = 'LGPLv2+',
         classifiers = [
             'Development Status :: 3 - Alpha',