diff --git a/.editorconfig b/.editorconfig
index a7c9295..55ad84d 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -1,4 +1,4 @@
-# Check http://editorconfig.org for more information
+# Check https://editorconfig.org for more information
 # This is the main config file for this project:
 root = true
 
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index c5bb2d6..ba24fa0 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -56,7 +56,7 @@ We use GitHub issues to track public bugs. Report a bug by opening a new issue.
 
 ### Use a consistent coding style
 
-We use [Black](https://github.com/psf/black) and (working towards) [wemake-python-styleguide](https://github.com/wemake-services/wemake-python-styleguide) for code and [Google-style](http://sphinxcontrib-napoleon.readthedocs.io/en/latest/example_google.html) reStructuredText for doc-strings.
+We use [Black](https://github.com/psf/black) and (working towards) [wemake-python-styleguide](https://github.com/wemake-services/wemake-python-styleguide) for code and [Google-style](https://sphinxcontrib-napoleon.readthedocs.io/en/latest/example_google.html) reStructuredText for doc-strings.
 
 <hr>
 
diff --git a/LICENSE b/LICENSE
index 7dff518..b7d05aa 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 This software is derived from Django EAV (https://github.com/mvpdev/django-eav)
 which, in turn, was derived from EAV Django, originally written and copyrighted
-by Andrey Mikhaylenko <http://pypi.python.org/pypi/eav-django>.
+by Andrey Mikhaylenko <https://pypi.org/project/eav-django/>.
 
 This is free software: you can redistribute it and/or modify
 it under the terms of the GNU Lesser General Public License as published
diff --git a/docs/source/conf.py b/docs/source/conf.py
index aa8bb68..ae9b797 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -1,7 +1,7 @@
 # Sphinx documentation generator configuration.
 #
 # More information on the configuration options is available at:
-#     http://www.sphinx-doc.org/en/master/usage/configuration.html
+#     https://www.sphinx-doc.org/en/master/usage/configuration.html
 
 import os
 import sys
diff --git a/eav/validators.py b/eav/validators.py
index 136fa0c..b6541b8 100644
--- a/eav/validators.py
+++ b/eav/validators.py
@@ -3,7 +3,7 @@ This module contains a validator for each :class:`~eav.models.Attribute` datatyp
 
 A validator is a callable that takes a value and raises a ``ValidationError``
 if it doesn't meet some criteria (see `Django validators
-<http://docs.djangoproject.com/en/dev/ref/validators/>`_).
+<https://docs.djangoproject.com/en/dev/ref/validators/>`_).
 
 These validators are called by the
 :meth:`~eav.models.Attribute.validate_value` method in the
diff --git a/setup.cfg b/setup.cfg
index 4e9f9a9..2713480 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -110,7 +110,7 @@ exclude_lines =
 
 
 [mypy]
-# mypy configurations: http://bit.ly/2zEl9WI
+# mypy configurations: https://bit.ly/2zEl9WI
 
 allow_redefinition = False
 check_untyped_defs = True