diff --git a/README.md b/README.md
index 6cf848e8f..6c8b163ab 100644
--- a/README.md
+++ b/README.md
@@ -1,11 +1,11 @@
What is WTForms?
================
-[](https://travis-ci.org/wtforms/wtforms) [](https://coveralls.io/github/wtforms/wtforms?branch=master) [](http://wtforms.readthedocs.org/en/latest/?badge=latest)
+[](https://travis-ci.org/wtforms/wtforms) [](https://coveralls.io/github/wtforms/wtforms?branch=master) [](https://wtforms.readthedocs.io/en/latest/?badge=latest)
WTForms is a flexible forms validation and rendering library for python web development.
-To get started using WTForms, we recommend reading the [crash course][] on the docs site: http://wtforms.readthedocs.org/en/stable/
+To get started using WTForms, we recommend reading the [crash course][] on the docs site: https://wtforms.readthedocs.io/en/stable/
If you downloaded the package from PyPI, there will also be a prebuilt copy of the html documentation in the `docs/html/` directory.
@@ -17,8 +17,8 @@ Why use WTForms?
* [Framework-agnostic][]; works with your web framework and template engine of choice.
* Rich ecosystem of [library integrations](#library-integrations)
-[crash course]: http://wtforms.readthedocs.org/en/stable/crash_course.html
-[Framework-agnostic]: http://wtforms.readthedocs.org/en/stable/faq.html#does-wtforms-work-with-library-here
+[crash course]: https://wtforms.readthedocs.io/en/stable/crash_course.html
+[Framework-agnostic]: https://wtforms.readthedocs.io/en/stable/faq.html#does-wtforms-work-with-library-here
Installation
@@ -41,9 +41,9 @@ Third-Party Library Integrations
WTForms works with most web frameworks very well; but there are a number of tools available that make integration with database ORM's, environments, and frameworks even better - either reducing boilerplate or adding features like query fields, etc.
- * [Flask-WTF](https://flask-wtf.readthedocs.org/en/latest/) is an integration with the Flask framework providing a solid default CSRF configuration, file upload support, flask-i18n integration, and more.
+ * [Flask-WTF](https://flask-wtf.readthedocs.io/en/latest/) is an integration with the Flask framework providing a solid default CSRF configuration, file upload support, flask-i18n integration, and more.
* [WTForms-Appengine](https://github.com/wtforms/wtforms-appengine) provides ORM-backed fields and form generation from Appengine db/ndb schema
* [WTForms-SQLAlchemy](https://github.com/wtforms/wtforms-sqlalchemy) provides ORM-backed fields and generation of forms from models.
- * [WTForms-Alchemy](https://wtforms-alchemy.readthedocs.org/en/latest/) provides powerful model forms support
+ * [WTForms-Alchemy](https://wtforms-alchemy.readthedocs.io/en/latest/) provides powerful model forms support
diff --git a/docs/whats_new.rst b/docs/whats_new.rst
index 2419c2f5b..de9bae7f9 100644
--- a/docs/whats_new.rst
+++ b/docs/whats_new.rst
@@ -67,7 +67,7 @@ the new API's unless it needs to work across both WTForms 1.x and 2.x
(`docs `_)
.. _WTForms-Alchemy: https://pypi.python.org/pypi/WTForms-Alchemy
-.. _WTForms-Alchemy-docs: http://wtforms-alchemy.readthedocs.org/en/latest/
+.. _WTForms-Alchemy-docs: https://wtforms-alchemy.readthedocs.io/en/latest/
.. _WTForms-Appengine: https://github.com/wtforms/wtforms-appengine
.. _WTForms-Django: https://github.com/wtforms/wtforms-django