diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 6536325..892756c 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -246,6 +246,8 @@ model Invitation {
   status      InvitationStatus @default(PENDING)
   expiresAt   DateTime         @map("expires_at")
   acceptedAt  DateTime?        @map("accepted_at")
+  contractStartDate DateTime? @map("contract_start_date")
+  contractEndDate   DateTime? @map("contract_end_date")
 
   createdAt DateTime @default(now()) @map("created_at")