diff --git a/src/MD_STD_SEC.php b/src/MD_STD_SEC.php
index 764f058..c23bd5c 100644
--- a/src/MD_STD_SEC.php
+++ b/src/MD_STD_SEC.php
@@ -134,8 +134,8 @@ final class MD_STD_SEC {
     /**
      * Send CSP headers.
      *
-     * @param array{default-src: string, connect-src: string, script-src: string, img-src: string, media-src: string, style-src: string, frame-src: string, object-src: string, base-uri: string, form-action: string, frame-ancestors?: string} $directives      Directives to send. Font source is always set to 'self', and hence excluded.
-     * @param string                                                                                                                                                                                                                             $frame_ancestors Frame ancestors directive. Default is to not set it.
+     * @param array{default-src: string, connect-src: string, script-src: string, img-src: string, media-src: string, style-src: string, frame-src: string, object-src: string, base-uri: string, form-action: string, worker-src?: string, frame-ancestors?: string} $directives      Directives to send. Font source is always set to 'self', and hence excluded.
+     * @param string                                                                                                                                                                                                                                                  $frame_ancestors Frame ancestors directive. Default is to not set it.
      *
      * @return void
      */