diff --git a/docs/NODE_API.md b/docs/NODE_API.md
index a366b2497..9cc0659f3 100644
--- a/docs/NODE_API.md
+++ b/docs/NODE_API.md
@@ -228,4 +228,4 @@ Returns **[Promise][21]<[string][18]>**
 
 [22]: https://developer.mozilla.org/docs/Web/API/Comment/Comment
 
-[23]: http://daringfireball.net/projects/markdown/
+[23]: https://daringfireball.net/projects/markdown/