diff --git a/README.md b/README.md
index 43d9aca7cc7769e015bb04f28b084b7748eddadb..e8dc4669ebc116763d95f416c275e416c174293a 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,21 @@ satella
 [![License](https://img.shields.io/pypi/l/satella)](https://github.com/piotrmaslanka/satella)
 [![linting: pylint](https://img.shields.io/badge/linting-pylint-yellowgreen)](https://github.com/pylint-dev/pylint)
 
+Important!
+----------
+
+Development has been moved to [external PyPI](https://git.dms-serwis.com.pl/smokserwis/satella).
+In order to install latest Satella just type:
+
+```
+pip install --extra-index-url https://git.dms-serwis.com.pl/api/v4/groups/330/-/packages/pypi/simple satella
+```
+
+It's still free, MIT-licensed and publicly available. No one's taking it from you :)
+
+What is Satella?
+----------------
+
 Satella is an almost-zero-requirements Python 3.7+ library for writing server applications. It has arisen out of my
 requirements to have some classes or design patterns handy, and kinda wish-they-were-in-the-stdlib ones. especially
 those dealing with mundane but useful things. It also runs on PyPy, and most of it runs on Windows (the part not dealing
@@ -66,4 +81,4 @@ Automatic release system
 
 Releases happen automatically. Just add a tag with the name of the version.
 
-**NOTE that changes from 2.25 will be numbered as tags without the prefix ```v```**!
\ No newline at end of file
+**NOTE that changes from 2.25 will be numbered as tags without the prefix ```v```**!