diff --git a/functions/src/events/types.ts b/functions/src/events/types.ts
index 588f97925..b507b2eb0 100644
--- a/functions/src/events/types.ts
+++ b/functions/src/events/types.ts
@@ -77,7 +77,7 @@ export const HearingContent = BaseEventContent.extend({
         Record({
           BillNumber: String,
           GeneralCourtNumber: Number,
-          PrimarySponsor: Nullable(Record({ Id: String })),
+          PrimarySponsor: Nullable(Record({ Id: Nullable(String) })),
           Title: String
         })
       ),