diff --git a/How-to-Upgrade.md b/How-to-Upgrade.md
index 4322992..4eb52d1 100644
--- a/How-to-Upgrade.md
+++ b/How-to-Upgrade.md
@@ -33,4 +33,10 @@ Upgrading from one OpenSupports version to another consists in replacing the cur
 3. Replace the OpenSupports files in your server with the content of the zip file.
 4. Go to the folder `version_upgrades/4.2.0/` and run the script with `php 4.2.0.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.
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+6. Upgrade should be complete. If you had some issues, feel free to open a ticket here at github.
+
+## Upgrade v4.2.0 -> v4.2.1
+
+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.
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