diff --git a/docs/README.md b/docs/README.md
index a84819d..9a9557d 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -13,7 +13,7 @@ Jekyll SEO Tag adds the following meta tags to your site:
 * Canonical URL
 * Next and previous URLs on paginated pages
 * [JSON-LD Site and post metadata](https://developers.google.com/search/docs/guides/intro-structured-data) for richer indexing
-* [Open Graph](http://ogp.me/) title, description, site title, and URL (for Facebook, LinkedIn, etc.)
+* [Open Graph](https://ogp.me/) title, description, site title, and URL (for Facebook, LinkedIn, etc.)
 * [Twitter Summary Card](https://dev.twitter.com/cards/overview) metadata
 
 While you could theoretically add the necessary metadata tags yourself, Jekyll SEO Tag provides a battle-tested template of crowdsourced best-practices.