diff --git a/packages/template/-private/index.d.ts b/packages/template/-private/index.d.ts
index 29ba2aa21..357f6cda9 100644
--- a/packages/template/-private/index.d.ts
+++ b/packages/template/-private/index.d.ts
@@ -30,6 +30,7 @@ export type ContentValue =
   | string
   | number
   | boolean
+  | Date
   | null
   | undefined
   | void