diff --git a/wp-content/themes/ccat/functions.php b/wp-content/themes/ccat/functions.php
index 2c50db6..5361ab1 100644
--- a/wp-content/themes/ccat/functions.php
+++ b/wp-content/themes/ccat/functions.php
@@ -40,6 +40,7 @@ require_once __DIR__ . '/includes/graphql/image-center.php';
 
 // Vendors
 require_once __DIR__ . '/includes/vendors/acf.php';
+require_once __DIR__ . '/includes/vendors/rank-math-seo.php';
 require_once __DIR__ . '/includes/vendors/wpgraphql.php';
 
 // Widgets
diff --git a/wp-content/themes/ccat/includes/vendors/rank-math-seo.php b/wp-content/themes/ccat/includes/vendors/rank-math-seo.php
new file mode 100644
index 0000000..4ab993e
--- /dev/null
+++ b/wp-content/themes/ccat/includes/vendors/rank-math-seo.php
@@ -0,0 +1,8 @@
+<?php
+
+// Replace domain used in sitemap.xml
+add_filter( 'rank_math/sitemap/entry', 'ccat_rank_math_seo_replace_domain' );
+function ccat_rank_math_seo_replace_domain( $entry ) {
+	$entry['loc'] = str_replace( 'wp.cultureat.ca', 'cultureat.ca', $entry['loc'] );
+	return $entry;
+}