diff --git a/8-66.html b/8-76.html
similarity index 99%
rename from 8-66.html
rename to 8-76.html
index 719d999..0d09ea0 100644
--- a/8-66.html
+++ b/8-76.html
@@ -6,7 +6,7 @@
 <html>
     <head>
         <title>
-            Exercise 8-66
+            Exercise 8-76
         </title>
         <style>
             html, body {
diff --git a/index.html b/index.html
index aaf74f6..5b8e688 100644
--- a/index.html
+++ b/index.html
@@ -199,7 +199,7 @@
             </tr>
             <tr>
                 <td>
-                    <a href='8-66.html'>Exercises 8-66 & 8-77</a>
+                    <a href='8-76.html'>Exercises 8-76 & 8-77</a>
                 </td>
                 <td>
                     <t>Superball bouncing under a table</t>
