diff --git a/index.html b/index.html
index b685d519..7a81c9d0 100644
--- a/index.html
+++ b/index.html
@@ -99,14 +99,14 @@ <h2 class="title">Checkboxes</h2>
     <section class="nes-container with-title">
       <h2 class="title">Avatars</h2>
       <div>
-        <img src="http://www.gravatar.com/avatar" class="nes-avatar is-small">
-        <img src="http://www.gravatar.com/avatar" class="nes-avatar">
-        <img src="http://www.gravatar.com/avatar" class="nes-avatar is-medium">
-        <img src="http://www.gravatar.com/avatar" class="nes-avatar is-large">
-        <img src="http://www.gravatar.com/avatar" class="nes-avatar is-small is-rounded">
-        <img src="http://www.gravatar.com/avatar" class="nes-avatar is-rounded">
-        <img src="http://www.gravatar.com/avatar" class="nes-avatar is-medium is-rounded">
-        <img src="http://www.gravatar.com/avatar" class="nes-avatar is-large is-rounded">
+        <img src="https://www.gravatar.com/avatar" class="nes-avatar is-small">
+        <img src="https://www.gravatar.com/avatar" class="nes-avatar">
+        <img src="https://www.gravatar.com/avatar" class="nes-avatar is-medium">
+        <img src="https://www.gravatar.com/avatar" class="nes-avatar is-large">
+        <img src="https://www.gravatar.com/avatar" class="nes-avatar is-small is-rounded">
+        <img src="https://www.gravatar.com/avatar" class="nes-avatar is-rounded">
+        <img src="https://www.gravatar.com/avatar" class="nes-avatar is-medium is-rounded">
+        <img src="https://www.gravatar.com/avatar" class="nes-avatar is-large is-rounded">
       </div>
     </section>