diff --git a/src/app/lib/hubspot/dealSync.ts b/src/app/lib/hubspot/dealSync.ts
index 26a0497f..dbf03962 100644
--- a/src/app/lib/hubspot/dealSync.ts
+++ b/src/app/lib/hubspot/dealSync.ts
@@ -195,7 +195,13 @@ export async function syncSurveyRequestToHubSpot(params: {
     await client.crm.deals.basicApi.update(params.hubspotDealId, {
       properties: {
         osmosis_survey_required: params.surveyType,
-        osmosis_survey_date: params.requestedAt.toISOString(),
+        osmosis_survey_date: String(
+          Date.UTC(
+            params.requestedAt.getUTCFullYear(),
+            params.requestedAt.getUTCMonth(),
+            params.requestedAt.getUTCDate()
+          )
+        ),
       },
     });
     return { ok: true };