diff --git a/src/pocketmine/PocketMine.php b/src/pocketmine/PocketMine.php
index 1a6229f7a..aa125a9f7 100644
--- a/src/pocketmine/PocketMine.php
+++ b/src/pocketmine/PocketMine.php
@@ -71,7 +71,7 @@ namespace pocketmine {
 	use pocketmine\wizard\Installer;
 
 	const VERSION = "Alpha_1.4dev";
-	const API_VERSION = "1.8.0";
+	const API_VERSION = "1.9.0";
 	const CODENAME = "絶好(Zekkou)ケーキ(Cake)";
 	const MINECRAFT_VERSION = "v0.10.4 alpha";