diff --git a/pytest.ini b/pytest.ini
--- a/pytest.ini
+++ b/pytest.ini
@@ -1,11 +1,9 @@
 [pytest]
-addopts = -p no:flask -p no:pytest_swh_storage --ignore-glob=*random_fixtures_test.py
+addopts = -p no:flask -p no:pytest_swh_storage --ignore=swh/web/tests/random_fixtures_test.py
 norecursedirs = docs node_modules .tox
 DJANGO_SETTINGS_MODULE = swh.web.settings.tests
 filterwarnings =
     ignore:.*Plural value must be an integer, got float
     ignore:.*Using or importing the ABCs from 'collections'
-    ignore:.*uses the 'client' fixture
-    ignore:.*uses the 'mocker' fixture
-    ignore:.*uses the 'requests_mock' fixture
+    ignore:.*uses the.*fixture, which is reset between function calls
     ignore:.*'U' mode is deprecated
diff --git a/swh/web/tests/conftest.py b/swh/web/tests/conftest.py
--- a/swh/web/tests/conftest.py
+++ b/swh/web/tests/conftest.py
@@ -159,7 +159,7 @@
     random.setstate(state)
 
 
-def pytest_report_teststatus(report, config):
+def pytest_report_teststatus(report, *args):
     if report.when == "call" and report.outcome == "failed":
         seed = cache.get(_random_seed_cache_key, None)
         line = (
@@ -169,7 +169,7 @@
         report.sections.append((_swh_web_custom_section, line))
 
 
-def pytest_terminal_summary(terminalreporter, exitstatus, config):
+def pytest_terminal_summary(terminalreporter, *args):
     reports = terminalreporter.getreports("failed")
     content = os.linesep.join(
         text
diff --git a/swh/web/tests/test_random_fixtures.py b/swh/web/tests/test_random_fixtures.py
--- a/swh/web/tests/test_random_fixtures.py
+++ b/swh/web/tests/test_random_fixtures.py
@@ -6,18 +6,20 @@
 import os
 import subprocess
 
+pytest_command = ["python3", "-m", "pytest", "-s"]
+
 
 def test_random_fixtures():
     """Check random fixture values will be different when random seed
     is not explicitly provided.
     """
     result_first = subprocess.run(
-        ["pytest", "-s", "random_fixtures_test.py"],
+        [*pytest_command, "random_fixtures_test.py"],
         capture_output=True,
         cwd=os.path.dirname(__file__),
     )
     result_second = subprocess.run(
-        ["pytest", "-s", "random_fixtures_test.py"],
+        [*pytest_command, "random_fixtures_test.py"],
         capture_output=True,
         cwd=os.path.dirname(__file__),
     )
@@ -30,12 +32,12 @@
     is explicitly provided through a custom pytest option.
     """
     result_first = subprocess.run(
-        ["pytest", "-s", "--swh-web-random-seed=2021", "random_fixtures_test.py"],
+        [*pytest_command, "--swh-web-random-seed=2021", "random_fixtures_test.py"],
         capture_output=True,
         cwd=os.path.dirname(__file__),
     )
     result_second = subprocess.run(
-        ["pytest", "-s", "--swh-web-random-seed=2021", "random_fixtures_test.py"],
+        [*pytest_command, "--swh-web-random-seed=2021", "random_fixtures_test.py"],
         capture_output=True,
         cwd=os.path.dirname(__file__),
     )
diff --git a/tox.ini b/tox.ini
--- a/tox.ini
+++ b/tox.ini
@@ -10,6 +10,7 @@
   pytest \
     slow:  --hypothesis-profile=swh-web \
     !slow: --hypothesis-profile=swh-web-fast \
+      --ignore-glob=*random_fixtures_test.py \
       --cov {envsitepackagesdir}/swh/web --cov-branch {posargs} {envsitepackagesdir}/swh/web
 
 [testenv:flake8]