diff --git a/src/wp-includes/class-oembed.php b/src/wp-includes/class-oembed.php
index 68a02fb759..7480d98973 100644
--- a/src/wp-includes/class-oembed.php
+++ b/src/wp-includes/class-oembed.php
@@ -56,7 +56,7 @@ class WP_oEmbed {
 			'#https?://vine.co/v/.*#i'                            => array( 'https://vine.co/oembed.{format}',                    true  ),
  			'#https?://(www\.)?soundcloud\.com/.*#i'              => array( 'http://soundcloud.com/oembed',                       true  ),
 			'#https?://(.+?\.)?slideshare\.net/.*#i'              => array( 'https://www.slideshare.net/api/oembed/2',            true  ),
-			'#http://instagr(\.am|am\.com)/p/.*#i'                => array( 'http://api.instagram.com/oembed',                    true  ),
+			'#https?://instagr(\.am|am\.com)/p/.*#i'              => array( 'https://api.instagram.com/oembed',                   true  ),
 			'#https?://(www\.)?rdio\.com/.*#i'                    => array( 'http://www.rdio.com/api/oembed/',                    true  ),
 			'#https?://rd\.io/x/.*#i'                             => array( 'http://www.rdio.com/api/oembed/',                    true  ),
 			'#https?://(open|play)\.spotify\.com/.*#i'            => array( 'https://embed.spotify.com/oembed/',                  true  ),