diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index e34da9ea..acd80b15 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -76,7 +76,7 @@ documentation section: [Translation](https://docs.djangoproject.com/en/dev/topic
 
 ### Requirements
 
-- Python 3.5+, pip3, pipenv
+- Python 3.5.3+, pip, pipenv
 - NodeJS 8.x+ and NPM 5.x+
 - Gulp
 
diff --git a/README.md b/README.md
index 13fc3c2c..8e6ecb5d 100644
--- a/README.md
+++ b/README.md
@@ -122,15 +122,15 @@ requirements are Python, a web server, an application server, and a database.
 
 #### Requirements
 
-- Python 3.5+, pip, pipenv
+- Python 3.5.3+, pip, pipenv
 - Web server ([nginx](http://nginx.org/), [Apache](http://httpd.apache.org/), etc.)
 - Application server ([uwsgi](http://projects.unbit.it/uwsgi), [gunicorn](http://gunicorn.org/), etc.)
 - Database ([sqlite](https://sqlite.org/), [Postgres](https://www.postgresql.org/), [MySQL](https://www.mysql.com/), etc.)
 
 #### Example deployment
 
-*This example assumes a 512MB VPS instance with Ubuntu 16.04.* It uses
-Python 3.5+, nginx, uwsgi and sqlite and should be sufficient for a few users
+*This example assumes a 512MB VPS instance with Ubuntu 18.04.* It uses
+Python 3.5.3+, nginx, uwsgi and sqlite and should be sufficient for a few users
 (e.g. two parents and 1+ child).
 
 1. Install system packages