diff --git a/docs/index.md b/docs/index.md
index e216e73..af07d05 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -11,7 +11,7 @@ This page is a summary of the mistakes in the [100 Go Mistakes and How to Avoid
     You're viewing a beta version enriched with significantly more content. However, this version is not yet complete, and I'm looking for volunteers to help me summarize the remaining mistakes ([GitHub issue #43](https://github.com/teivah/100-go-mistakes/issues/43)).
 
     Progress:
-    <progress value="70" max="100"/>
+    <progress value="80" max="100"/>
 
 ![](img/inside-cover.png)
 
diff --git a/site/index.html b/site/index.html
index 092ac06..5c58a37 100644
--- a/site/index.html
+++ b/site/index.html
@@ -3294,7 +3294,7 @@
 <summary>Beta</summary>
 <p>You're viewing a beta version enriched with significantly more content. However, this version is not yet complete, and I'm looking for volunteers to help me summarize the remaining mistakes (<a href="https://github.com/teivah/100-go-mistakes/issues/43">GitHub issue #43</a>).</p>
 <p>Progress:
-<progress value="70" max="100"/></p>
+<progress value="80" max="100"/></p>
 </details>
 <p><a class="glightbox" href="img/inside-cover.png" data-type="image" data-width="auto" data-height="auto" data-desc-position="bottom"><img alt="" src="img/inside-cover.png" /></a></p>
 <h2 id="code-and-project-organization">Code and Project Organization</h2>
diff --git a/site/sitemap.xml.gz b/site/sitemap.xml.gz
index f1ff725..56df8ad 100644
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