diff --git a/front50-sql/src/main/kotlin/com/netflix/spinnaker/front50/migrations/StorageServiceMigrator.kt b/front50-sql/src/main/kotlin/com/netflix/spinnaker/front50/migrations/StorageServiceMigrator.kt
index c3285a9fd..ff4f51bbf 100644
--- a/front50-sql/src/main/kotlin/com/netflix/spinnaker/front50/migrations/StorageServiceMigrator.kt
+++ b/front50-sql/src/main/kotlin/com/netflix/spinnaker/front50/migrations/StorageServiceMigrator.kt
@@ -81,8 +81,9 @@ class StorageServiceMigrator(
        * - does not exist in 'target'
        * or
        * - has been more recently modified in 'source'
+       *   (with "some" buffer to account for precision loss on s3 due to RFC 1123 being used for last modified values)
        */
-      !targetObjectKeys.containsKey(e.key) || targetObjectKeys[e.key]!! < e.value
+      !targetObjectKeys.containsKey(e.key) || targetObjectKeys[e.key]!! < (e.value - 1000)
     }
 
     if (migratableObjectKeys.isEmpty()) {