diff --git a/minimal_heap.h b/minimal_heap.h
index 30fda82..4689978 100644
--- a/minimal_heap.h
+++ b/minimal_heap.h
@@ -1,4 +1,4 @@
-/* Version 1.4 */
+/* Version 1.5 */
 
 #ifndef __MINIMAL_HEAP_H__
 #define __MINIMAL_HEAP_H__