diff --git a/packages/core/destination_writers/postgres_impl.ts b/packages/core/destination_writers/postgres_impl.ts
index 9f950fe3b..595a1c69a 100644
--- a/packages/core/destination_writers/postgres_impl.ts
+++ b/packages/core/destination_writers/postgres_impl.ts
@@ -198,7 +198,8 @@ DO UPDATE SET (${columnsToUpdateStr}) = (${excludedColumnsToUpdateStr})`,
               const dedupeKey = `${applicationId}__${providerName}__${customerId}__${unifiedData.id}`;
               const existingLastModifiedAt = dedupeMap.get(dedupeKey);
 
-              if (existingLastModifiedAt && existingLastModifiedAt > lastModifiedAt) {
+              // Some providers have the same lastModifiedAt for multiple records
+              if (existingLastModifiedAt && existingLastModifiedAt >= lastModifiedAt) {
                 // skip this record, it's older than the existing one
                 return callback(null);
               }
@@ -442,7 +443,8 @@ DO UPDATE SET (${columnsToUpdateStr}) = (${excludedColumnsToUpdateStr})`,
               const dedupeKey = `${applicationId}__${providerName}__${customerId}__${record.id}__${objectName}`;
               const existingLastModifiedAt = dedupeMap.get(dedupeKey);
 
-              if (existingLastModifiedAt && existingLastModifiedAt > lastModifiedAt) {
+              // Some providers have the same lastModifiedAt for multiple records
+              if (existingLastModifiedAt && existingLastModifiedAt >= lastModifiedAt) {
                 // skip this record, it's older than the existing one
                 return callback(null);
               }