diff --git a/readme.md b/readme.md
index e33a218..34382cd 100644
--- a/readme.md
+++ b/readme.md
@@ -314,6 +314,6 @@ If you want to create your own list, please read the [create list instructions](
 
 ## License
 
-[![CC0](http://i.creativecommons.org/p/zero/1.0/88x31.png)](http://creativecommons.org/publicdomain/zero/1.0/)
+[![CC0](https://i.creativecommons.org/p/zero/1.0/88x31.png)](https://creativecommons.org/publicdomain/zero/1.0/)
 
 To the extent possible under law, [Sindre Sorhus](http://sindresorhus.com) has waived all copyright and related or neighboring rights to this work.