diff --git a/How-to-Upgrade.md b/How-to-Upgrade.md
index 3b601f4..10e3635 100644
--- a/How-to-Upgrade.md
+++ b/How-to-Upgrade.md
@@ -39,4 +39,13 @@ Upgrading from one OpenSupports version to another consists in replacing the cur
 
 1. Download the upgrade [zip file](https://github.com/opensupports/opensupports/releases/download/v4.2.1/opensupports_v4.2.1_update.zip)
 2. Merge and replace the OpenSupports files in your server with the content of the zip file.
-3. Upgrade should be complete. If you had some issues, feel free to open a ticket here at github.
\ No newline at end of file
+3. Upgrade should be complete. If you had some issues, feel free to open a ticket here at github.
+
+## Upgrade v4.2.x -> v4.3.0
+
+1. Do a database backup before upgrading for safety
+2. Download the upgrade [zip file](https://github.com/opensupports/opensupports/releases/download/v4.3.0/opensupports_v4.3.0_update.zip)
+3. Replace the OpenSupports files in your server with the content of the zip file.
+4. Go to the folder `version_upgrades/4.3.0/` and run the script with `php 4.3.0.php`
+5. After the script is 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.