diff --git a/archival/v2archive/manifest.go b/archival/v2archive/manifest.go
index 96594ff0e2ad57e2a48a8a4cbc9b02f2141b7b77..baf9508c0dd4dfe4758060084d8f90d271e164d1 100644
--- a/archival/v2archive/manifest.go
+++ b/archival/v2archive/manifest.go
@@ -9,7 +9,7 @@ const (
 const ManifestVersion = ManifestVersionV2
 
 type Manifest struct {
-	Version   int                        `json:"version"`
+	Version   ManifestVersionVal         `json:"version"`
 	EntityId  string                     `json:"entity_id"`
 	CreatedTs int64                      `json:"created_ts"`
 	Media     map[string]*ManifestRecord `json:"media"`