diff --git a/toroid.html b/toroid.html
index 87f9c4b..e01b0c8 100644
--- a/toroid.html
+++ b/toroid.html
@@ -7,7 +7,7 @@
         <link rel="stylesheet" href="toroid.css">
     </head>
     <body>
-        <header>Miguel <a href="mailto:vk3cpu@gmail.com">VK3CPU</a> - RF Toroid Calculator v1.5<br></header>
+        <header>Miguel <a href="mailto:vk3cpu@gmail.com">VK3CPU</a> - RF Toroid Calculator v1.6<br></header>
         <section class="gridLayoutClass">
             <div id="chart-container" class="chart-container">
                 <canvas id="chartCanvas" class="chartCanvasClass">
