diff --git a/sql/upgrades/053.sql b/sql/upgrades/053.sql
new file mode 100644
index 00000000..04667268
--- /dev/null
+++ b/sql/upgrades/053.sql
@@ -0,0 +1,29 @@
+-- SWH DB schema upgrade
+-- from_version: 52
+-- to_version: 53
+-- description: Uniformize tmp_release and tmp_release_get tables to tmp_release
+
+insert into dbversion(version, release, description)
+      values(53, now(), 'Work In Progress');
+
+CREATE OR REPLACE FUNCTION swh_mktemp_release_get() RETURNS void
+    LANGUAGE sql
+    AS $$
+    create temporary table tmp_release (
+      id sha1_git primary key
+    ) on commit drop;
+$$;
+
+CREATE OR REPLACE FUNCTION swh_release_get() RETURNS SETOF release_entry
+    LANGUAGE plpgsql
+    AS $$
+begin
+    return query
+        select r.id, r.target, r.target_type, r.date, r.date_offset, r.date_neg_utc_offset, r.name, r.comment,
+               r.synthetic, p.id as author_id, p.name as author_name, p.email as author_email
+        from tmp_release t
+        inner join release r on t.id = r.id
+        inner join person p on p.id = r.author;
+    return;
+end
+$$;