diff --git a/monstra/engine/core.php b/monstra/engine/core.php
index 1e9a78e..ae45c2d 100644
--- a/monstra/engine/core.php
+++ b/monstra/engine/core.php
@@ -42,6 +42,12 @@
         const DEVELOPMENT = 4;
 
 
+        /**
+    	 * The version of Monstra
+    	 */
+    	const VERSION = '1.2.1';
+
+
         /**
          * Monstra environment
          *