diff --git a/assets/templates/credits.phtml b/assets/templates/credits.phtml
index db5a85d..71e3bf9 100644
--- a/assets/templates/credits.phtml
+++ b/assets/templates/credits.phtml
@@ -16,6 +16,17 @@
                     <li><a href="https://www.phptherightway.com/" target="_blank">PHP The Right Way</a></li>
                 </ul>
             </p>
+            <p>
+                PHP Apprentice was built using several open source projects, besides PHP itself.
+                Thank you to each of these maintainers for providing great libraries!
+                <ul>
+                    <li><a href="https://prismjs.com/" target="_blank">Prism.js</a></li>
+                    <li><a href="https://www.zondicons.com/" target="_blank">Zondicons by Steve Schoger</a></li>
+                    <li><a href="https://postcss.org/" target="_blank">PostCSS</a></li>
+                    <li><a href="https://symfony.com/doc/current/components/console.html" target="_blank">Symfony CLI</a></li>
+                    <li><a href="https://symfony.com/doc/current/frontend.html" target="_blank">Symfony Encore</a></li>
+                </ul>
+            </p>
         </div>
         <div>
             <?php partial('table_of_contents') ?>
diff --git a/docs/credits.html b/docs/credits.html
index 6b7c0c1..3bc0de2 100644
--- a/docs/credits.html
+++ b/docs/credits.html
@@ -30,6 +30,17 @@
                     <li><a href="https://www.phptherightway.com/" target="_blank">PHP The Right Way</a></li>
                 </ul>
             </p>
+            <p>
+                PHP Apprentice was built using several open source projects.
+                Thank you to each of these maintainers for providing great libraries!
+                <ul>
+                    <li><a href="https://prismjs.com/" target="_blank">Prism.js</a></li>
+                    <li><a href="https://www.zondicons.com/" target="_blank">Zondicons by Steve Schoger</a></li>
+                    <li><a href="https://postcss.org/" target="_blank">PostCSS</a></li>
+                    <li><a href="https://symfony.com/doc/current/components/console.html" target="_blank">Symfony CLI</a></li>
+                    <li><a href="https://symfony.com/doc/current/frontend.html" target="_blank">Symfony Encore</a></li>
+                </ul>
+            </p>
         </div>
         <div>
             <div class="table-of-contents">