diff --git a/api/migrations/083_fmcsa_campaign_tracking.sql b/api/migrations/083_fmcsa_campaign_tracking.sql
index 2a3bc83..44d7f80 100644
--- a/api/migrations/083_fmcsa_campaign_tracking.sql
+++ b/api/migrations/083_fmcsa_campaign_tracking.sql
@@ -5,6 +5,6 @@ ALTER TABLE fmcsa_carriers
   ADD COLUMN IF NOT EXISTS listmonk_sent_at TIMESTAMPTZ,
   ADD COLUMN IF NOT EXISTS listmonk_campaign_type TEXT;
 
-CREATE INDEX IF NOT EXISTS idx_fmcsa_carriers_listmonk_sent
+CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_fmcsa_carriers_listmonk_sent
   ON fmcsa_carriers (listmonk_sent_at)
   WHERE listmonk_sent_at IS NULL;