diff --git a/backport-changelog/6.8/7698.md b/backport-changelog/6.8/7698.md
new file mode 100644
index 00000000000000..3ded160e7ec449
--- /dev/null
+++ b/backport-changelog/6.8/7698.md
@@ -0,0 +1,3 @@
+https://github.com/WordPress/wordpress-develop/pull/7698
+
+* https://github.com/WordPress/gutenberg/pull/66662
diff --git a/lib/class-wp-theme-json-resolver-gutenberg.php b/lib/class-wp-theme-json-resolver-gutenberg.php
index 2231cb0f11538f..cd02b5a45c22f7 100644
--- a/lib/class-wp-theme-json-resolver-gutenberg.php
+++ b/lib/class-wp-theme-json-resolver-gutenberg.php
@@ -920,18 +920,14 @@ public static function resolve_theme_file_uris( $theme_json ) {
 			return $theme_json;
 		}
 
-		$resolved_theme_json_data = array(
-			'version' => WP_Theme_JSON_Gutenberg::LATEST_SCHEMA,
-		);
+		$resolved_theme_json_data = $theme_json->get_raw_data();
 
 		foreach ( $resolved_urls as $resolved_url ) {
 			$path = explode( '.', $resolved_url['target'] );
 			_wp_array_set( $resolved_theme_json_data, $path, $resolved_url['href'] );
 		}
 
-		$theme_json->merge( new WP_Theme_JSON_Gutenberg( $resolved_theme_json_data ) );
-
-		return $theme_json;
+		return new WP_Theme_JSON_Gutenberg( $resolved_theme_json_data );
 	}
 
 	/**