diff --git a/manifest.json b/manifest.json
index 5357cac2..ca8c1dfc 100644
--- a/manifest.json
+++ b/manifest.json
@@ -119,6 +119,11 @@
 		"20-title",
 		"20-01",
 		"20-02",
-		"20-03"
+		"20-03",
+		"21-title",
+		"21-01",
+		"21-02",
+		"21-03",
+		"21-04"
 	]
 }
\ No newline at end of file