diff --git a/How-to-Upgrade.md b/How-to-Upgrade.md
index 30adc93..a79c6e7 100644
--- a/How-to-Upgrade.md
+++ b/How-to-Upgrade.md
@@ -12,21 +12,16 @@ Upgrading from one OpenSupports version to another consists in replacing the cur
 1. Do a database backup before upgrading for safety
 2. Download the upgrade [zip file](https://github.com/opensupports/opensupports/releases/download/v4.1.2/opensupports_v4.1.2_update.zip)
 3. Replace the OpenSupports files in your server with the content of the zip file.
-4. Set up the environment variables of the database and run 4.2.1.php
-```
-$ export MYSQL_SERVER=your_mysql_server
-$ export MYSQL_DB=your_mysql_database
-$ export MYSQL_USER=your_mysql_user
-$ export MYSQL_PASSWORD=your_mysql_password
-$ cd version_upgrades/4.1.2
-$ php 4.1.2.php
-```
-5. After script in run, remove the folder `version_upgrades`
+4. Go to the folder `version_upgrades/4.1.2/` and run the script with `php 4.1.2.php`
+5. After script in done, remove the folder `version_upgrades`
 6. Upgrade should be complete. If you had some issues, feel free to open a ticket here at github.
 
 
 ## Upgrade v4.1.2 -> v4.1.3
 
-_Documentation in Progress_
-
-Please wait until we're finished with the upgrade script for `v4.1.3`.
\ No newline at end of file
+1. Do a database backup before upgrading for safety
+2. Download the upgrade [zip file](https://github.com/opensupports/opensupports/releases/download/v4.1.3/opensupports_v4.1.3_update.zip)
+3. Replace the OpenSupports files in your server with the content of the zip file.
+4. Go to the folder `version_upgrades/4.1.2/` and run the script with `php 4.1.3.php`
+5. After script in done, remove the folder `version_upgrades`
+6. Upgrade should be complete. If you had some issues, feel free to open a ticket here at github.