diff --git a/manifest.json b/manifest.json
index 74c04b9..8af7edc 100644
--- a/manifest.json
+++ b/manifest.json
@@ -219,6 +219,7 @@
 		"21-04",
 		"21-06",
 		"21-09",
+		"21-12",
 		"21-15",
 		"21-18",
 		"21-20",