diff --git a/.travis.yml b/.travis.yml
index 2cd69e0..aeb5d9f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,62 +1,105 @@
 language: python
 python: 3.5
 env:
-  - TOX_ENV=py27-dj17
-  - TOX_ENV=py27-dj18
-  - TOX_ENV=py27-dj19
-  - TOX_ENV=py27-dj110
-  - TOX_ENV=py27-dj111
-  - TOX_ENV=py34-dj17
-  - TOX_ENV=py34-dj18
-  - TOX_ENV=py34-dj19
-  - TOX_ENV=py34-dj110
-  - TOX_ENV=py34-dj111
-  - TOX_ENV=py34-dj20
-  - TOX_ENV=py35-dj18
-  - TOX_ENV=py35-dj19
-  - TOX_ENV=py35-dj110
-  - TOX_ENV=py35-dj111
-  - TOX_ENV=py35-dj20
-  - TOX_ENV=py35-dj21
-  - TOX_ENV=py35-djmaster
-  # - TOX_ENV=py36-dj111
-  # - TOX_ENV=py36-dj20
-  # - TOX_ENV=py36-dj21
-  # - TOX_ENV=py36-djmaster
-  # - TOX_ENV=py37-dj20
-  # - TOX_ENV=py37-dj21
-  # - TOX_ENV=py37-djmaster
+  - TOX_ENV=py27-dj17-sqlite
+  - TOX_ENV=py27-dj17-postgres
+  - TOX_ENV=py27-dj18-sqlite
+  - TOX_ENV=py27-dj18-postgres
+  - TOX_ENV=py27-dj19-sqlite
+  - TOX_ENV=py27-dj19-postgres
+  - TOX_ENV=py27-dj110-sqlite
+  - TOX_ENV=py27-dj110-postgres
+  - TOX_ENV=py27-dj111-sqlite
+  - TOX_ENV=py27-dj111-postgres
+  - TOX_ENV=py34-dj17-sqlite
+  - TOX_ENV=py34-dj17-postgres
+  - TOX_ENV=py34-dj18-sqlite
+  - TOX_ENV=py34-dj18-postgres
+  - TOX_ENV=py34-dj19-sqlite
+  - TOX_ENV=py34-dj19-postgres
+  - TOX_ENV=py34-dj110-sqlite
+  - TOX_ENV=py34-dj110-postgres
+  - TOX_ENV=py34-dj111-sqlite
+  - TOX_ENV=py34-dj111-postgres
+  - TOX_ENV=py34-dj20-sqlite
+  - TOX_ENV=py34-dj20-postgres
+  - TOX_ENV=py35-dj18-sqlite
+  - TOX_ENV=py35-dj18-postgres
+  - TOX_ENV=py35-dj19-sqlite
+  - TOX_ENV=py35-dj19-postgres
+  - TOX_ENV=py35-dj110-sqlite
+  - TOX_ENV=py35-dj110-postgres
+  - TOX_ENV=py35-dj111-sqlite
+  - TOX_ENV=py35-dj111-postgres
+  - TOX_ENV=py35-dj20-sqlite
+  - TOX_ENV=py35-dj20-postgres
+  - TOX_ENV=py35-dj21-sqlite
+  - TOX_ENV=py35-dj21-postgres
+  - TOX_ENV=py35-dj22-sqlite
+  - TOX_ENV=py35-dj22-postgres
 matrix:
   include:
     - python: "3.6"
-      env: TOX_ENV=py36-dj111
+      env:
+        - TOX_ENV=py36-dj111-sqlite
+        - TOX_ENV=py36-dj111-postgres
     - python: "3.6"
-      env: TOX_ENV=py36-dj20
+      env:
+        - TOX_ENV=py36-dj20-sqlite
+        - TOX_ENV=py36-dj20-postgres
     - python: "3.6"
-      env: TOX_ENV=py36-dj21
+      env:
+        - TOX_ENV=py36-dj21-sqlite
+        - TOX_ENV=py36-dj21-postgres
     - python: "3.6"
-      env: TOX_ENV=py36-djmaster
+      env:
+        - TOX_ENV=py36-dj22-sqlite
+        - TOX_ENV=py36-dj22-postgres
+    - python: "3.6"
+      env:
+        - TOX_ENV=py36-djmaster-sqlite
+        - TOX_ENV=py36-djmaster-postgres
     - python: "3.7"
-      env: TOX_ENV=py37-dj20
+      env:
+        - TOX_ENV=py37-dj20-sqlite
+        - TOX_ENV=py37-dj20-postgres
       dist: xenial
       language: python
       sudo: required
     - python: "3.7"
-      env: TOX_ENV=py37-dj21
+      env:
+        - TOX_ENV=py37-dj21-sqlite
+        - TOX_ENV=py37-dj21-postgres
       dist: xenial
       language: python
       sudo: required
     - python: "3.7"
-      env: TOX_ENV=py37-djmaster
+      env:
+        - TOX_ENV=py37-dj22-sqlite
+        - TOX_ENV=py37-dj22-postgres
+      dist: xenial
+      language: python
+      sudo: required
+    - python: "3.7"
+      env:
+        - TOX_ENV=py37-djmaster-sqlite
+        - TOX_ENV=py37-djmaster-postgres
       dist: xenial
       language: python
       sudo: required
   allow_failures:
-    - env: TOX_ENV=py35-djmaster
-    - env: TOX_ENV=py36-djmaster
-    - env: TOX_ENV=py37-djmaster
+    - env:
+      - TOX_ENV=py36-djmaster-sqlite
+      - TOX_ENV=py36-djmaster-postgres
+    - env:
+      - TOX_ENV=py37-djmaster-sqlite
+      - TOX_ENV=py37-djmaster-postgres
 install:
   - pip install tox
+services:
+  - postgresql
+before_script:
+  - psql -c 'create database admin_interface;' -U postgres
 script:
   - tox -e $TOX_ENV
 sudo: false
diff --git a/tests/settings.py b/tests/settings.py
index ef33456..2008427 100644
--- a/tests/settings.py
+++ b/tests/settings.py
@@ -62,13 +62,34 @@ TEMPLATES = [{
     },
 },]
 
-DATABASES = {
-    'default': {
+database_engine = os.environ.get('DATABASE_ENGINE', 'sqlite')
+database_config = {
+    'sqlite': {
         'ENGINE': 'django.db.backends.sqlite3',
-        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
+        'NAME': ':memory:',
+    },
+    # 'mysql': {
+    #     'ENGINE': 'django.db.backends.mysql',
+    #     'NAME': 'admin_interface',
+    #     'USER': 'mysql',
+    #     'PASSWORD': 'mysql',
+    #     'HOST': '',
+    #     'PORT': '',
+    # },
+    'postgres': {
+        'ENGINE': 'django.db.backends.postgresql_psycopg2',
+        'NAME': 'admin_interface',
+        'USER': 'postgres',
+        'PASSWORD': 'postgres',
+        'HOST': '',
+        'PORT': '',
     }
 }
 
+DATABASES = {
+    'default': database_config.get(database_engine),
+}
+
 MEDIA_ROOT = os.path.join(BASE_DIR, 'admin_interface/public/media/')
 MEDIA_URL = '/media/'
 
diff --git a/tox.ini b/tox.ini
index e000ac3..6a8a8f7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,10 +1,10 @@
 [tox]
 envlist =
-    py27-{dj17,dj18,dj19,dj110,dj111},
-    py34-{dj17,dj18,dj19,dj110,dj111,dj20},
-    py35-{dj18,dj19,dj110,dj111,dj20,dj21,djmaster},
-    py36-{dj18,dj19,dj110,dj111,dj20,dj21,djmaster},
-    py37-{dj20,dj21,djmaster},
+    py27-{dj17,dj18,dj19,dj110,dj111}-{sqlite,postgres},
+    py34-{dj17,dj18,dj19,dj110,dj111,dj20}-{sqlite,postgres},
+    py35-{dj18,dj19,dj110,dj111,dj20,dj21,dj22}-{sqlite,postgres},
+    py36-{dj18,dj19,dj110,dj111,dj20,dj21,dj22,djmaster}-{sqlite,postgres},
+    py37-{dj20,dj21,dj22,djmaster}-{sqlite,postgres},
 [testenv]
 passenv = CI TRAVIS TRAVIS_*
 deps =
@@ -15,9 +15,16 @@ deps =
     dj111: Django >= 1.11, < 1.12
     dj20: Django >= 2.0, < 2.1
     dj21: Django >= 2.1, < 2.2
+    dj22: Django >= 2.2, < 2.3
     djmaster: https://github.com/django/django/archive/master.tar.gz
+    # mysql: mysqlclient
+    postgres: psycopg2-binary
     coverage
     codecov
+setenv =
+    sqlite: DATABASE_ENGINE=sqlite
+    # mysql: DATABASE_ENGINE=mysql
+    postgres: DATABASE_ENGINE=postgres
 commands =
     coverage run --append --source=admin_interface setup.py test
     coverage report -m