diff --git a/openprocurement/tender/openuadefense/models.py b/openprocurement/tender/openuadefense/models.py
index bc8c313..e66c585 100644
--- a/openprocurement/tender/openuadefense/models.py
+++ b/openprocurement/tender/openuadefense/models.py
@@ -6,10 +6,11 @@
 from schematics.types.compound import ModelType
 from schematics.types.serializable import serializable
 from zope.interface import implementer
+from openprocurement.api.models import ITender, Period, get_now,TZ
 from openprocurement.tender.openua.models import (
     Tender as BaseTender, EnquiryPeriod, Lot as BaseLot, get_tender, calc_auction_end_time, validate_lots_uniq,
 )
-from openprocurement.api.models import ITender, Period, get_now, TZ
+
 from openprocurement.tender.openua.utils import calculate_business_date
 
 
@@ -18,7 +19,7 @@
 CLAIM_SUBMIT_TIME = timedelta(days=3)
 COMPLAINT_SUBMIT_TIME = timedelta(days=2)
 COMPLAINT_OLD_SUBMIT_TIME = timedelta(days=3)
-COMPLAINT_OLD_SUBMIT_TIME_BEFORE = datetime(2016, 7, 4, 13, 0, 0, tzinfo=TZ)
+COMPLAINT_OLD_SUBMIT_TIME_BEFORE = datetime(2016, 7, 5, tzinfo=TZ)
 TENDER_PERIOD = timedelta(days=6)
 ENQUIRY_PERIOD_TIME = timedelta(days=3)
 TENDERING_EXTRA_PERIOD = timedelta(days=2)
diff --git a/setup.py b/setup.py
index ec60dc3..7e46885 100644
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,7 @@
 from setuptools import setup, find_packages
 import os
 
-version = '2.3.0'
+version = '2.3.1'
 
 requires = [
     'setuptools',