diff --git a/mypy.ini b/mypy.ini
index 4373ba9a..f35b2e18 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -1,7 +1,7 @@
 # Mypy is an optional static type checker for Python that aims to combine
 # the benefits of dynamic (or "duck") typing and static typing.
 #
-# Documentation: http://www.mypy-lang.org
+# Documentation: https://www.mypy-lang.org
 # Project: https://github.com/python/mypy
 # Config reference: https://mypy.readthedocs.io/en/stable/config_file.html
 #