diff --git a/composer.json b/composer.json
index a562a8b4..c99673a9 100644
--- a/composer.json
+++ b/composer.json
@@ -36,7 +36,7 @@
 	},
 	"extra": {
 		"branch-alias": {
-			"dev-master": "5.1-dev"
+			"dev-master": "6.0-dev"
 		}
 	}
 }
diff --git a/readme.md b/readme.md
index a0a86310..03ed17e1 100644
--- a/readme.md
+++ b/readme.md
@@ -34,7 +34,7 @@ Install Dibi via Composer:
 composer require dibi/dibi
 ```
 
-The Dibi 5.1 requires PHP version 8.2 and supports PHP up to 8.5.
+The Dibi 6.0 requires PHP version 8.2 and supports PHP up to 8.5.
 
 
 Usage
diff --git a/src/Dibi/dibi.php b/src/Dibi/dibi.php
index c983435e..58aaa84b 100644
--- a/src/Dibi/dibi.php
+++ b/src/Dibi/dibi.php
@@ -37,7 +37,7 @@ declare(strict_types=1);
  */
 class dibi
 {
-	public const Version = '5.1-dev';
+	public const Version = '6.0-dev';
 
 	/** @deprecated use dibi::Version */
 	public const VERSION = self::Version;