diff --git a/src/commands/help.ts b/src/commands/help.ts
index acd473c..d5a13e5 100644
--- a/src/commands/help.ts
+++ b/src/commands/help.ts
@@ -58,7 +58,9 @@ function schemaSpecOption(): void {
 options:
     --spec=            JSON schema specification to use
             draft7     JSON Schema draft-07 (default)
-            draft2019  JSON Schema draft-2019-09`)
+            draft2019  JSON Schema draft-2019-09
+            draft2020  JSON Schema draft-2020-12
+            jtd        JSON Type Definition`)
 }
 
 function helpValidate(): void {