diff --git a/backend/src/seeds/contributionLink/ContributionLinkInterface.ts b/backend/src/seeds/contributionLink/ContributionLinkInterface.ts
index d213bff23..15ba4b72d 100644
--- a/backend/src/seeds/contributionLink/ContributionLinkInterface.ts
+++ b/backend/src/seeds/contributionLink/ContributionLinkInterface.ts
@@ -2,6 +2,6 @@ export interface ContributionLinkInterface {
   amount: number
   name: string
   memo: string
-  validFrom?: date
-  validTo?: date
+  validFrom?: Date
+  validTo?: Date
 }