diff --git a/README.md b/README.md
index 6646312..8658f1c 100644
--- a/README.md
+++ b/README.md
@@ -47,3 +47,5 @@ When it's all done, please submit a pull request to the [ServiceWorker Cookbook]
 # Attributions
 
 [MealKeeper Icon](https://www.iconfinder.com/icons/51445/cook_book_recipe_group_icon) by [Shlyapnikova](http://shlyapnikova.deviantart.com/), [Creative Commons (Attribution 3.0 Unported)](http://creativecommons.org/licenses/by/3.0/)
+
+Attribution of pictures in Caching strategies category can be found at [lorempixel.com](http://lorempixel.com).
diff --git a/src/tpl/index.html b/src/tpl/index.html
index bf386c7..b1c8db5 100644
--- a/src/tpl/index.html
+++ b/src/tpl/index.html
@@ -5,6 +5,7 @@ <h1>Introduction</h1>
 
   <h2>Attribution</h2>
   <p>The Service Worker Cookbook was created by <a href="https://mozilla.com">Mozilla</a> with <a href="https://github.com/mozilla/serviceworker-cookbook/graphs/contributors">contributions</a> from developers like you.  All source code is <a href="https://github.com/mozilla/serviceworker-cookbook">available on GitHub</a>.  Contributions and requests welcome.</p>
+  <p>Attribution of pictures in Caching strategies category can be found at <a href="http://lorempixel.com">lorempixel.com</a>.</p>
 
   <h2>Recipes</h2>
   {% for recipe in recipes %}