diff --git a/requirements-db-pytestplugin.txt b/requirements-db-pytestplugin.txt
new file mode 100644
--- /dev/null
+++ b/requirements-db-pytestplugin.txt
@@ -0,0 +1,2 @@
+# requirements for swh.core.db.pytest_plugin
+pytest-postgresql
diff --git a/requirements-db.txt b/requirements-db.txt
--- a/requirements-db.txt
+++ b/requirements-db.txt
@@ -1,4 +1,4 @@
 # requirements for swh.core.db
 psycopg2
 typing-extensions
-pytest-postgresql
+
diff --git a/setup.py b/setup.py
--- a/setup.py
+++ b/setup.py
@@ -56,6 +56,7 @@
         "testing-core": parse_requirements("test"),
         "logging": parse_requirements("logging"),
         "db": parse_requirements("db"),
+        "db-pytestplugin": parse_requirements("db-pytestplugin"),
         "testing-db": parse_requirements("test-db"),
         "http": parse_requirements("http"),
         # kitchen sink, please do not use
diff --git a/tox.ini b/tox.ini
--- a/tox.ini
+++ b/tox.ini
@@ -6,7 +6,7 @@
 extras =
   testing-core
   core: logging
-  db: db, testing-db
+  db: db, testing-db, db-pytestplugin
   server: http
 deps =
   db: pifpaf