diff --git a/requirements-swh.txt b/requirements-swh.txt
index 074e961..76a8876 100644
--- a/requirements-swh.txt
+++ b/requirements-swh.txt
@@ -1,2 +1,2 @@
-swh.core[db] >= 3.4.0
-swh.scheduler >= 2.7.0
+swh.core[db] >= 4.0.0
+swh.scheduler >= 3.0.0
diff --git a/requirements-test.txt b/requirements-test.txt
index 4cd12d0..9420286 100644
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -4,7 +4,7 @@ pandas-stubs
 pytest >= 8.1
 pytest-mock
 requests_mock
-swh-scheduler[testing] >= 2.7.0
+swh-scheduler[testing] >= 3.0.0
 types-beautifulsoup4
 types-click
 types-dateparser
diff --git a/requirements.txt b/requirements.txt
index bd20daf..87e2168 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ launchpadlib
 looseversion
 lxml
 mercurial
-psycopg2
+psycopg
 pyreadr
 python_debian
 repomd
diff --git a/swh/lister/rubygems/lister.py b/swh/lister/rubygems/lister.py
index 400a992..aa5593c 100644
--- a/swh/lister/rubygems/lister.py
+++ b/swh/lister/rubygems/lister.py
@@ -15,7 +15,7 @@ import tempfile
 from typing import Any, Dict, Iterator, Optional, Tuple
 
 from bs4 import BeautifulSoup
-import psycopg2
+import psycopg
 from testing.postgresql import Postgresql
 
 from swh.scheduler.interface import SchedulerInterface
@@ -87,20 +87,18 @@ class RubyGemsLister(StatelessLister[RubyGemsListerPage]):
 
     def create_rubygems_db(
         self, postgresql: Postgresql
-    ) -> Tuple[str, psycopg2._psycopg.connection]:
+    ) -> Tuple[str, psycopg.Connection[Any]]:
         logger.debug("Creating rubygems database")
 
         db_dsn = postgresql.dsn()
         db_url = postgresql.url().replace(db_dsn["database"], self.DB_NAME)
-        db = psycopg2.connect(**db_dsn)
-        db.set_isolation_level(psycopg2.extensions.ISOLATION_LEVEL_AUTOCOMMIT)
+        db = psycopg.connect(autocommit=True, conninfo=postgresql.url())
         with db.cursor() as cursor:
             cursor.execute(f"CREATE DATABASE {self.DB_NAME}")
 
         db_dsn["database"] = self.DB_NAME
 
-        db = psycopg2.connect(**db_dsn)
-        db.set_isolation_level(psycopg2.extensions.ISOLATION_LEVEL_AUTOCOMMIT)
+        db = psycopg.connect(conninfo=db_url, autocommit=True)
         with db.cursor() as cursor:
             cursor.execute("CREATE EXTENSION IF NOT EXISTS hstore")