diff --git a/tests/test_api.py b/tests/test_api.py
index 05929342..24bfbc65 100644
--- a/tests/test_api.py
+++ b/tests/test_api.py
@@ -9,9 +9,9 @@ from .fixtures import (
 import pytest
 import urllib
 
-pytest.fixture(scope='module')(app_client)
-pytest.fixture(scope='module')(app_client_shorter_time_limit)
-pytest.fixture(scope='module')(app_client_returend_rows_matches_page_size)
+pytest.fixture(scope='session')(app_client)
+pytest.fixture(scope='session')(app_client_shorter_time_limit)
+pytest.fixture(scope='session')(app_client_returend_rows_matches_page_size)
 
 
 def test_homepage(app_client):
diff --git a/tests/test_html.py b/tests/test_html.py
index 79f3b581..cc227f7b 100644
--- a/tests/test_html.py
+++ b/tests/test_html.py
@@ -4,7 +4,7 @@ import pytest
 import re
 import urllib.parse
 
-pytest.fixture(scope='module')(app_client)
+pytest.fixture(scope='session')(app_client)
 
 
 def test_homepage(app_client):
diff --git a/tests/test_inspect.py b/tests/test_inspect.py
index 6cbfde26..954dcff7 100644
--- a/tests/test_inspect.py
+++ b/tests/test_inspect.py
@@ -35,7 +35,7 @@ CREATE TABLE "office" (
 '''
 
 
-@pytest.fixture(scope='module')
+@pytest.fixture(scope='session')
 def ds_instance():
     with tempfile.TemporaryDirectory() as tmpdir:
         filepath = os.path.join(tmpdir, 'test_tables.db')