diff --git a/readme.md b/readme.md
index a150802..e6e58bd 100644
--- a/readme.md
+++ b/readme.md
@@ -62,6 +62,14 @@ You can try to increase performance by using the cache (the directory must exist
 DG\BypassFinals::setCacheDirectory(__DIR__ . '/cache');
 ```
 
+To register BypassFinals in PHPUnit 10, simply add the extension to the PHPUnit XML configuration file:
+
+```xml
+<extensions>
+	<bootstrap class="DG\BypassFinals\PHPUnitExtension"/>
+</extensions>
+```
+
 Support Project
 ---------------
 
diff --git a/src/PHPUnitExtension.php b/src/PHPUnitExtension.php
new file mode 100644
index 0000000..a61c43f
--- /dev/null
+++ b/src/PHPUnitExtension.php
@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DG\BypassFinals;
+
+use DG\BypassFinals;
+use PHPUnit\Runner\Extension\Extension;
+use PHPUnit\Runner\Extension\Facade;
+use PHPUnit\Runner\Extension\ParameterCollection;
+use PHPUnit\TextUI\Configuration\Configuration;
+
+
+final class PHPUnitExtension implements Extension
+{
+	public function bootstrap(
+		Configuration $configuration,
+		Facade $facade,
+		ParameterCollection $parameters
+	): void
+	{
+		BypassFinals::enable();
+	}
+}