diff --git a/.travis.yml b/.travis.yml
index d86443f..810ab65 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,77 +5,81 @@ cache: pip
 services:
   - postgresql
 addons:
-  postgresql: "11"
+  postgresql: "12"
   apt:
     packages:
     - postgresql-10
     - postgresql-client-10
     - postgresql-11
     - postgresql-client-11
-    - systemd-sysv
-
+    - postgresql-12
+    - postgresql-client-12
 python:
   - 2.7
-  - 3.4
   - 3.5
   - 3.6
   - 3.7
+  - 3.8
 
 env:
-  - DJANGO=1.7 PG=9.3
   - DJANGO=1.7 PG=9.4
   - DJANGO=1.7 PG=9.5
   - DJANGO=1.7 PG=9.6
   - DJANGO=1.7 PG=10
   - DJANGO=1.7 PG=11
-  - DJANGO=1.8 PG=9.3
+  - DJANGO=1.7 PG=12
   - DJANGO=1.8 PG=9.4
   - DJANGO=1.8 PG=9.5
   - DJANGO=1.8 PG=9.6
   - DJANGO=1.8 PG=10
   - DJANGO=1.8 PG=11
-  - DJANGO=1.9 PG=9.3
+  - DJANGO=1.8 PG=12
   - DJANGO=1.9 PG=9.4
   - DJANGO=1.9 PG=9.5
   - DJANGO=1.9 PG=9.6
   - DJANGO=1.9 PG=10
   - DJANGO=1.9 PG=11
-  - DJANGO=1.10 PG=9.3
+  - DJANGO=1.9 PG=12
   - DJANGO=1.10 PG=9.4
   - DJANGO=1.10 PG=9.5
   - DJANGO=1.10 PG=9.6
   - DJANGO=1.10 PG=10
   - DJANGO=1.10 PG=11
-  - DJANGO=1.11 PG=9.3
+  - DJANGO=1.10 PG=12
   - DJANGO=1.11 PG=9.4
   - DJANGO=1.11 PG=9.5
   - DJANGO=1.11 PG=9.6
   - DJANGO=1.11 PG=10
   - DJANGO=1.11 PG=11
-  - DJANGO=2.0 PG=9.3
+  - DJANGO=1.11 PG=12
   - DJANGO=2.0 PG=9.4
   - DJANGO=2.0 PG=9.5
   - DJANGO=2.0 PG=9.6
   - DJANGO=2.0 PG=10
   - DJANGO=2.0 PG=11
-  - DJANGO=2.1 PG=9.3
+  - DJANGO=2.0 PG=12
   - DJANGO=2.1 PG=9.4
   - DJANGO=2.1 PG=9.5
   - DJANGO=2.1 PG=9.6
   - DJANGO=2.1 PG=10
   - DJANGO=2.1 PG=11
-  - DJANGO=2.2 PG=9.3
+  - DJANGO=2.1 PG=12
   - DJANGO=2.2 PG=9.4
   - DJANGO=2.2 PG=9.5
   - DJANGO=2.2 PG=9.6
   - DJANGO=2.2 PG=10
   - DJANGO=2.2 PG=11
+  - DJANGO=2.2 PG=12
+  - DJANGO=3.0 PG=9.4
+  - DJANGO=3.0 PG=9.5
+  - DJANGO=3.0 PG=9.6
+  - DJANGO=3.0 PG=10
+  - DJANGO=3.0 PG=11
+  - DJANGO=3.0 PG=12
 
 matrix:
   exclude:
   # Django 2.0+ doesn't support python 2.7
-  - python: 2.7
-    env: DJANGO=2.0 PG=9.3
   - python: 2.7
     env: DJANGO=2.0 PG=9.4
   - python: 2.7
@@ -87,7 +91,7 @@ matrix:
   - python: 2.7
     env: DJANGO=2.0 PG=11
   - python: 2.7
-    env: DJANGO=2.1 PG=9.3
+    env: DJANGO=2.0 PG=12
   - python: 2.7
     env: DJANGO=2.1 PG=9.4
   - python: 2.7
@@ -99,7 +103,7 @@ matrix:
   - python: 2.7
     env: DJANGO=2.1 PG=11
   - python: 2.7
-    env: DJANGO=2.2 PG=9.3
+    env: DJANGO=2.1 PG=12
   - python: 2.7
     env: DJANGO=2.2 PG=9.4
   - python: 2.7
@@ -110,36 +114,44 @@ matrix:
     env: DJANGO=2.2 PG=10
   - python: 2.7
     env: DJANGO=2.2 PG=11
+  - python: 2.7
+    env: DJANGO=2.2 PG=12
+  - python: 2.7
+    env: DJANGO=3.0 PG=9.4
+  - python: 2.7
+    env: DJANGO=3.0 PG=9.5
+  - python: 2.7
+    env: DJANGO=3.0 PG=9.6
+  - python: 2.7
+    env: DJANGO=3.0 PG=10
+  - python: 2.7
+    env: DJANGO=3.0 PG=11
+  - python: 2.7
+    env: DJANGO=3.0 PG=12
 
-  # Django 2.1+ doesn't support python 3.4
-  - python: 3.4
-    env: DJANGO=2.1 PG=9.3
-  - python: 3.4
-    env: DJANGO=2.1 PG=9.4
-  - python: 3.4
-    env: DJANGO=2.1 PG=9.5
-  - python: 3.4
-    env: DJANGO=2.1 PG=9.6
-  - python: 3.4
-    env: DJANGO=2.1 PG=10
-  - python: 3.4
-    env: DJANGO=2.1 PG=11
-  - python: 3.4
-    env: DJANGO=2.2 PG=9.3
-  - python: 3.4
-    env: DJANGO=2.2 PG=9.4
-  - python: 3.4
-    env: DJANGO=2.2 PG=9.5
-  - python: 3.4
-    env: DJANGO=2.2 PG=9.6
-  - python: 3.4
-    env: DJANGO=2.2 PG=10
-  - python: 3.4
-    env: DJANGO=2.2 PG=11
+  # Django 3.0+ doesn't support python 3.5
+  - python: 3.5
+    env: DJANGO=3.0 PG=9.4
+  - python: 3.5
+    env: DJANGO=3.0 PG=9.5
+  - python: 3.5
+    env: DJANGO=3.0 PG=9.6
+  - python: 3.5
+    env: DJANGO=3.0 PG=10
+  - python: 3.5
+    env: DJANGO=3.0 PG=11
+  - python: 3.5
+    env: DJANGO=3.0 PG=12
+
+  # Django 3.0+ doesn't support Postgresql 9.4
+  - python: 3.6
+    env: DJANGO=3.0 PG=9.4
+  - python: 3.7
+    env: DJANGO=3.0 PG=9.4
+  - python: 3.8
+    env: DJANGO=3.0 PG=9.4
 
   # Django 1.7 doesn't support python 3.5+
-  - python: 3.5
-    env: DJANGO=1.7 PG=9.3
   - python: 3.5
     env: DJANGO=1.7 PG=9.4
   - python: 3.5
@@ -150,8 +162,8 @@ matrix:
     env: DJANGO=1.7 PG=10
   - python: 3.5
     env: DJANGO=1.7 PG=11
-  - python: 3.6
-    env: DJANGO=1.7 PG=9.3
+  - python: 3.5
+    env: DJANGO=1.7 PG=12
   - python: 3.6
     env: DJANGO=1.7 PG=9.4
   - python: 3.6
@@ -162,8 +174,8 @@ matrix:
     env: DJANGO=1.7 PG=10
   - python: 3.6
     env: DJANGO=1.7 PG=11
-  - python: 3.7
-    env: DJANGO=1.7 PG=9.3
+  - python: 3.6
+    env: DJANGO=1.7 PG=12
   - python: 3.7
     env: DJANGO=1.7 PG=9.4
   - python: 3.7
@@ -174,11 +186,23 @@ matrix:
     env: DJANGO=1.7 PG=10
   - python: 3.7
     env: DJANGO=1.7 PG=11
+  - python: 3.7
+    env: DJANGO=1.7 PG=12
+  - python: 3.8
+    env: DJANGO=1.7 PG=9.4
+  - python: 3.8
+    env: DJANGO=1.7 PG=9.5
+  - python: 3.8
+    env: DJANGO=1.7 PG=9.6
+  - python: 3.8
+    env: DJANGO=1.7 PG=10
+  - python: 3.8
+    env: DJANGO=1.7 PG=11
+  - python: 3.8
+    env: DJANGO=1.7 PG=12
 
-  # python 3.6 has deprecated issue with django before 1.11
+  # python 3.6+ has deprecated issue with django before 1.11
   # https://stackoverflow.com/questions/41343263/provide-classcell-example-for-python-3-6-metaclass\
-  - python: 3.6
-    env: DJANGO=1.8 PG=9.3
   - python: 3.6
     env: DJANGO=1.8 PG=9.4
   - python: 3.6
@@ -189,8 +213,8 @@ matrix:
     env: DJANGO=1.8 PG=10
   - python: 3.6
     env: DJANGO=1.8 PG=11
-  - python: 3.7
-    env: DJANGO=1.8 PG=9.3
+  - python: 3.6
+    env: DJANGO=1.8 PG=12
   - python: 3.7
     env: DJANGO=1.8 PG=9.4
   - python: 3.7
@@ -201,8 +225,20 @@ matrix:
     env: DJANGO=1.8 PG=10
   - python: 3.7
     env: DJANGO=1.8 PG=11
-  - python: 3.6
-    env: DJANGO=1.9 PG=9.3
+  - python: 3.7
+    env: DJANGO=1.8 PG=12
+  - python: 3.8
+    env: DJANGO=1.8 PG=9.4
+  - python: 3.8
+    env: DJANGO=1.8 PG=9.5
+  - python: 3.8
+    env: DJANGO=1.8 PG=9.6
+  - python: 3.8
+    env: DJANGO=1.8 PG=10
+  - python: 3.8
+    env: DJANGO=1.8 PG=11
+  - python: 3.8
+    env: DJANGO=1.8 PG=12
   - python: 3.6
     env: DJANGO=1.9 PG=9.4
   - python: 3.6
@@ -212,9 +248,7 @@ matrix:
   - python: 3.6
     env: DJANGO=1.9 PG=10
   - python: 3.6
-    env: DJANGO=1.9 PG=11
-  - python: 3.7
-    env: DJANGO=1.9 PG=9.3
+    env: DJANGO=1.9 PG=12
   - python: 3.7
     env: DJANGO=1.9 PG=9.4
   - python: 3.7
@@ -225,8 +259,20 @@ matrix:
     env: DJANGO=1.9 PG=10
   - python: 3.7
     env: DJANGO=1.9 PG=11
-  - python: 3.6
-    env: DJANGO=1.10 PG=9.3
+  - python: 3.7
+    env: DJANGO=1.9 PG=12
+  - python: 3.8
+    env: DJANGO=1.9 PG=9.4
+  - python: 3.8
+    env: DJANGO=1.9 PG=9.5
+  - python: 3.8
+    env: DJANGO=1.9 PG=9.6
+  - python: 3.8
+    env: DJANGO=1.9 PG=10
+  - python: 3.8
+    env: DJANGO=1.9 PG=11
+  - python: 3.8
+    env: DJANGO=1.9 PG=12
   - python: 3.6
     env: DJANGO=1.10 PG=9.4
   - python: 3.6
@@ -237,8 +283,8 @@ matrix:
     env: DJANGO=1.10 PG=10
   - python: 3.6
     env: DJANGO=1.10 PG=11
-  - python: 3.7
-    env: DJANGO=1.10 PG=9.3
+  - python: 3.6
+    env: DJANGO=1.10 PG=12
   - python: 3.7
     env: DJANGO=1.10 PG=9.4
   - python: 3.7
@@ -249,13 +295,29 @@ matrix:
     env: DJANGO=1.10 PG=10
   - python: 3.7
     env: DJANGO=1.10 PG=11
-
+  - python: 3.7
+    env: DJANGO=1.10 PG=12
+  - python: 3.8
+    env: DJANGO=1.10 PG=9.4
+  - python: 3.8
+    env: DJANGO=1.10 PG=9.5
+  - python: 3.8
+    env: DJANGO=1.10 PG=9.6
+  - python: 3.8
+    env: DJANGO=1.10 PG=10
+  - python: 3.8
+    env: DJANGO=1.10 PG=11
+  - python: 3.8
+    env: DJANGO=1.10 PG=12
 
 before_install:
-  # Use default PostgreSQL 11 port
+  # Set up PostgreSQL 11 and 12
   - sudo sed -i 's/port = 5433/port = 5432/' /etc/postgresql/11/main/postgresql.conf
   - sudo cp /etc/postgresql/{10,11}/main/pg_hba.conf
 
+  - sudo sed -i 's/port = 5434/port = 5432/' /etc/postgresql/12/main/postgresql.conf
+  - sudo cp /etc/postgresql/{10,12}/main/pg_hba.conf
+
   # Start PostgreSQL version we need
   - sudo systemctl stop postgresql
   - sudo systemctl start postgresql@$PG-main
diff --git a/README.md b/README.md
index 88ccdf3..849859f 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@ A small library implementing PostgreSQL ability to return rows in DML statements
 [Link to PostgreSQL docs](https://www.postgresql.org/docs/10/static/sql-update.html)
 
 ## <a name="requirements">Requirements</a>
-* Python 2.7 or Python 3.4+
+* Python 2.7 or Python 3.5+
 * django >= 1.7  
   Previous versions may also work, but haven't been tested.  
   bulk_create_returning method doesn't support .only() and .defer() filters for django before 1.10.
@@ -11,7 +11,7 @@ A small library implementing PostgreSQL ability to return rows in DML statements
 * six
 * typing
 * psycopg2
-* PostgreSQL 9.3+   
+* PostgreSQL 9.4+   
   Previous versions may also work, but haven't been tested.  
 
 ## <a name="installation">Installation</a>
diff --git a/src/django_pg_returning/manager.py b/src/django_pg_returning/manager.py
index 7060966..84f833d 100644
--- a/src/django_pg_returning/manager.py
+++ b/src/django_pg_returning/manager.py
@@ -1,8 +1,8 @@
+from typing import Dict, Any, List, Type, Optional, Tuple
+
 import django
 from django.db import transaction, models
 from django.db.models import sql, Field, QuerySet
-from typing import Dict, Any, List, Type, Optional, Tuple
-
 from django.db.models.query import EmptyResultSet
 
 from .compatibility import chain_query, get_model_fields
@@ -17,12 +17,12 @@ def _get_loaded_field_cb(target, model, fields):
         """
         target[model] = fields
 
-    def _insert(self, objs, fields, return_id=False, raw=False, using=None, ignore_conflicts=False):
+    def _insert(self, objs, fields, **kwargs):
         """
         Replaces standard insert procedure for bulk_create_returning
         """
         if not getattr(self.model, '_insert_returning', False):
-            return QuerySet._insert(self, objs, fields, return_id=return_id, raw=raw, using=using)
+            return QuerySet._insert(self, objs, fields, **kwargs)
 
         # Returns attname, not column.
         # Before django 1.10 pk fields hasn't been returned from postgres.
@@ -33,13 +33,20 @@ def _insert(self, objs, fields, return_id=False, raw=False, using=None, ignore_c
             "You can't fetch relative model fields with returning operation"
 
         self._for_write = True
+        using = kwargs.get('using', None) or self.db
 
-        kwargs = {} if django.VERSION < (2, 2) else {'ignore_conflicts': ignore_conflicts}
-        query = sql.InsertQuery(self.model, **kwargs)
-        query.insert_values(fields, objs, raw=raw)
+        query_kwargs = {} if django.VERSION < (2, 2) else {'ignore_conflicts': kwargs.get('ignore_conflicts')}
+        query = sql.InsertQuery(self.model, **query_kwargs)
+        query.insert_values(fields, objs, raw=kwargs.get('raw'))
 
         self.model._insert_returning_cache = self._execute_sql(query, return_fields, using=using)
-        return self.model._insert_returning_cache.values_list(self.model._meta.pk.column, flat=True) if return_id else None
+        if django.VERSION < (3,):
+            return self.model._insert_returning_cache.values_list(self.model._meta.pk.column, flat=True) \
+                if kwargs.get('return_id', False) else None
+        else:
+            returning_fields = kwargs.get('returning_fields', None)
+            return self.model._insert_returning_cache.values_list(*(f.column for f in returning_fields)) \
+                if returning_fields is not None else None
 
     _insert.alters_data = True
     _insert.queryset_only = False
@@ -92,7 +99,7 @@ def _get_returning_qs(self, query_type, values=None, **updates):
         :raises AssertionError: If input data is invalid
         """
         assert self.query.can_filter(), "Can not update or delete once a slice has been taken."
-        assert getattr(self, '_fields', None) is None,\
+        assert getattr(self, '_fields', None) is None, \
             "Can not call delete() or update() after .values() or .values_list()"
 
         # Returns attname, not column.
@@ -169,7 +176,8 @@ def bulk_create_returning(self, objs, batch_size=None):
         # Replace values fetched from returned data
         if result and result[0].pk:
             # For django 1.10+ where objects can be matched
-            values_dict = {item[self.model._meta.pk.column]: item for item in self.model._insert_returning_cache.values()}
+            values_dict = {item[self.model._meta.pk.column]: item for item in
+                           self.model._insert_returning_cache.values()}
             for item in result:
                 for k, v in values_dict[item.pk].items():
                     setattr(item, k, v)