diff --git a/.eleventy.js b/.eleventy.js
index b5321d7..d4774be 100644
--- a/.eleventy.js
+++ b/.eleventy.js
@@ -80,7 +80,7 @@ module.exports = function(eleventyConfig) {
 
     // If you don’t have a subdirectory, use "" or "/" (they do the same thing)
     // This is only used for link URLs (it does not affect your file structure)
-    // Best paired with the `url` filter: https://www.11ty.io/docs/filters/url/
+    // Best paired with the `url` filter: https://www.11ty.dev/docs/filters/url/
 
     // You can also pass this in on the command line using `--pathprefix`
     // pathPrefix: "/",
diff --git a/404.md b/404.md
index 2beb8b7..0d39dd3 100644
--- a/404.md
+++ b/404.md
@@ -8,7 +8,7 @@ eleventyExcludeFromCollections: true
 Go <a href="{{ '/' | url }}">home</a>.
 
 {% comment %}
-Read more: https://www.11ty.io/docs/quicktips/not-found/
+Read more: https://www.11ty.dev/docs/quicktips/not-found/
 
 This will work for both GitHub pages and Netlify:
 
diff --git a/_includes/layouts/base.njk b/_includes/layouts/base.njk
index 179a24d..e1a2b09 100644
--- a/_includes/layouts/base.njk
+++ b/_includes/layouts/base.njk
@@ -28,7 +28,7 @@
           <li>(Optional) Edit <code>.eleventy.js</code> with your <a href="https://www.11ty.dev/docs/config/">configuration preferences</a>.</li>
           <li>Delete this message from <code>_includes/layouts/base.njk</code>.</li>
         </ol>
-        <p><em>This is an <a href="https://www.11ty.io/">Eleventy project</a> created from the <a href="https://github.com/11ty/eleventy-base-blog"><code>eleventy-base-blog</code> repo</a>.</em></p>
+        <p><em>This is an <a href="https://www.11ty.dev/">Eleventy project</a> created from the <a href="https://github.com/11ty/eleventy-base-blog"><code>eleventy-base-blog</code> repo</a>.</em></p>
       </div>
 
       {{ content | safe }}