diff --git a/h5p.classes.php b/h5p.classes.php
index 83874f8..3cc31ac 100644
--- a/h5p.classes.php
+++ b/h5p.classes.php
@@ -1346,7 +1346,7 @@ class H5PCore {
 
   public static $coreApi = array(
     'majorVersion' => 1,
-    'minorVersion' => 4
+    'minorVersion' => 3
   );
   public static $styles = array(
     'styles/h5p.css',