diff --git a/requirements-swh.txt b/requirements-swh.txt
--- a/requirements-swh.txt
+++ b/requirements-swh.txt
@@ -1,4 +1,4 @@
-swh.core[db,http] >= 2
+swh.core[db,http] >= 2.9
 swh.counters >= v0.8.0
 swh.model >= 6.0.0
 swh.objstorage >= 0.2.2
diff --git a/swh/storage/postgresql/db.py b/swh/storage/postgresql/db.py
--- a/swh/storage/postgresql/db.py
+++ b/swh/storage/postgresql/db.py
@@ -27,8 +27,6 @@
 class Db(BaseDb):
     """Proxy to the SWH DB, with wrappers around stored procedures"""
 
-    current_version = 182
-
     def mktemp_dir_entry(self, entry_type, cur=None):
         self._cursor(cur).execute(
             "SELECT swh_mktemp_dir_entry(%s)", (("directory_entry_%s" % entry_type),)
diff --git a/swh/storage/postgresql/storage.py b/swh/storage/postgresql/storage.py
--- a/swh/storage/postgresql/storage.py
+++ b/swh/storage/postgresql/storage.py
@@ -103,6 +103,8 @@
 class Storage:
     """SWH storage proxy, encompassing DB and object storage"""
 
+    current_version: int = 182
+
     def __init__(
         self,
         db,
@@ -205,11 +207,6 @@
         cur.execute("select has_table_privilege(current_user, 'content', %s)", (check,))
         return cur.fetchone()[0]
 
-    @db_transaction()
-    def get_current_version(self, *, db: Db, cur=None):
-        """Returns the current code (expected) version"""
-        return db.current_version
-
     def _content_unique_key(self, hash, db):
         """Given a hash (tuple or dict), return a unique key from the
         aggregation of keys.