diff --git a/_includes/aside.html b/_includes/aside.html
index 4280168..33cc5c3 100644
--- a/_includes/aside.html
+++ b/_includes/aside.html
@@ -32,7 +32,7 @@
     <h4>License</h4>
 
     <p>
-        The content for this site is <a href="https://creativecommons.org/licenses/by-nc/3.0/" target="_blank">CC BY-NC 3.0</a>.
+        The content for this site is <a href="https://creativecommons.org/licenses/by-nc/4.0/" target="_blank">CC BY-NC 4.0</a>.
         The <a href="{{ site.repos | strip_newlines | strip_html | strip | normalize_whitespace | relative_url | uri_escape }}" target="_blank">code</a>
         for this site is <a href="https://opensource.org/licenses/MIT" target="_blank">MIT</a>.
     </p>