diff --git a/app/main.py b/app/main.py
index 8825e36..a6d3de3 100644
--- a/app/main.py
+++ b/app/main.py
@@ -295,7 +295,7 @@ async def _ha_replicate_by_ha(request: Request):
         logger.error(f'Version missmatch on HA replication task!')
         return JSONr(status_code=503, content={'status': 503, 'detail': 'Missmatch for "INSTANCE_REF"'})
 
-    sync_timestamp, max_seconds_behind = j.get('sync_timestamp'), 30
+    sync_timestamp, max_seconds_behind = datetime.fromisoformat(j.get('sync_timestamp')), 30
     if sync_timestamp <= cur_time - timedelta(seconds=max_seconds_behind):
         logger.error(f'Request time more than {max_seconds_behind}s behind!')
         return JSONr(status_code=503, content={'status': 503, 'detail': 'Request time behind'})
@@ -310,7 +310,7 @@ async def _ha_replicate_by_ha(request: Request):
     for lease in leases:
         lease_ref = lease.get('lease_ref')
         x = Lease.find_by_lease_ref(db, lease_ref)
-        if x.lease_updated > remote_time:
+        if x.lease_updated > sync_timestamp:
             continue
         logging.info(f'> [    ha    ]: lease {lease_ref}')
         data = Lease.deserialize(lease)