diff --git a/CHANGELOG.md b/CHANGELOG.md
index 35ee188..55f53b2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## v1.2.x
+## v1.2.3
 
 - Add event Event::POOL occurs when Flow needs to count IPs to process.
 - Add `Flow\IpPool` for managing pools of Ips.
diff --git a/docs/package.json b/docs/package.json
index 45dda54..786d9e5 100644
--- a/docs/package.json
+++ b/docs/package.json
@@ -12,7 +12,7 @@
   "keywords": [
     "flow"
   ],
-  "version": "1.2.2",
+  "version": "1.2.3",
   "browserslist": [
     "defaults"
   ],
diff --git a/docs/src/content/en/docs/getting-started/driver.md b/docs/src/content/en/docs/getting-started/driver.md
index c58e164..35bcac7 100644
--- a/docs/src/content/en/docs/getting-started/driver.md
+++ b/docs/src/content/en/docs/getting-started/driver.md
@@ -72,6 +72,16 @@ pecl install openswoole-22.0.0
 
 More documentation can be found [https://openswoole.com](https://openswoole.com)
 
+## Parallel Driver
+
+To use Parallel Driver, you have to require the library with PECL
+
+```bash
+pecl install parallel
+```
+
+More documentation can be found [https://www.php.net/manual/en/book.parallel.php](https://www.php.net/manual/en/book.parallel.php)
+
 ## Make your custom driver
 
 You can make your custom driver by implementing `Flow\DriverInterface`