diff --git a/app.js b/app.js
index 817bb9f..9e2058e 100644
--- a/app.js
+++ b/app.js
@@ -120,7 +120,7 @@ const SYSTEM_RANGES = {
     { label: '\u20133\u00B3 \u2013 3\u00B3', min: -27, max: 27 },
   ],
   octal: [
-    { label: '8\u2070 \u2013 8\u00B9', min: 1, max: 8 },
+    { label: '8\u00B9 \u2013 8\u00B2', min: 8, max: 64 },
     { label: '8\u00B2 \u2013 8\u00B3', min: 64, max: 512 },
     { label: '8\u2070 \u2013 8\u00B3', min: 1, max: 512 },
     { label: '8\u2070 \u2013 8\u2074', min: 1, max: 4096 },
diff --git a/index.html b/index.html
index 79b1958..e9cf6a7 100644
--- a/index.html
+++ b/index.html
@@ -10,7 +10,7 @@
   <link rel="manifest" href="manifest.json">
   <link rel="icon" type="image/svg+xml" href="icon.svg">
   <link rel="apple-touch-icon" href="icon-192.png">
-  <link rel="stylesheet" href="styles.css?v=9">
+  <link rel="stylesheet" href="styles.css?v=10">
 </head>
 <body>
   <div id="app">
@@ -158,10 +158,10 @@
 
   </div>
 
-  <script type="module" src="app.js?v=9"></script>
+  <script type="module" src="app.js?v=10"></script>
   <script>
     if ('serviceWorker' in navigator) {
-      navigator.serviceWorker.register('/sw.js?v=9').catch(() => {});
+      navigator.serviceWorker.register('/sw.js?v=10').catch(() => {});
     }
   </script>
 </body>
diff --git a/sw.js b/sw.js
index ab6f53e..5ec8a87 100644
--- a/sw.js
+++ b/sw.js
@@ -1,4 +1,4 @@
-const CACHE_NAME = 'numnum-v9';
+const CACHE_NAME = 'numnum-v10';
 const ASSETS = [
   '/',
   '/index.html',
