diff --git a/_includes/footer.html b/_includes/footer.html
index 1274725..0bb97c8 100644
--- a/_includes/footer.html
+++ b/_includes/footer.html
@@ -29,7 +29,7 @@
                 </ul>
                 <a rel="license" href="http://creativecommons.org/licenses/by-sa/4.0/">
                     <img alt="Creative Commons License" style="border-width:0"
-                         src="https://i.creativecommons.org/l/by-sa/4.0/88x31.png"/>
+                         src="/assets/images/cc-by-sa40.png"/>
                 </a><br/>
                 <span xmlns:dct="http://purl.org/dc/terms/" property="dct:title">2martens dot de</span> by
                 <a xmlns:cc="http://creativecommons.org/ns" href="https://2martens.de"
diff --git a/assets/images/cc-by-sa40.png b/assets/images/cc-by-sa40.png
new file mode 100644
index 0000000..e76aeff
Binary files /dev/null and b/assets/images/cc-by-sa40.png differ