diff --git a/manifest.json b/manifest.json
index 26ecfd7..3c95a11 100644
--- a/manifest.json
+++ b/manifest.json
@@ -187,6 +187,7 @@
 		"13-12",
 		"13-15",
 		"13-16",
-		"13-19"
+		"13-19",
+		"13-21"
 	]
 }
\ No newline at end of file