diff --git a/build.json b/build.json
index 51e70d53..f45fddb3 100644
--- a/build.json
+++ b/build.json
@@ -10,7 +10,7 @@
       "default": "3.9.13"
     },
     "AIIDA_VERSION": {
-      "default": "2.6.3"
+      "default": "2.7.0"
     },
     "AIIDALAB_VERSION": {
       "default": "24.09.0"
diff --git a/stack/base/config-quick-setup.yaml b/stack/base/config-quick-setup.yaml
index 72b89c5e..058dbde2 100644
--- a/stack/base/config-quick-setup.yaml
+++ b/stack/base/config-quick-setup.yaml
@@ -1,5 +1,4 @@
 ---
-db_engine: postgresql_psycopg2
 db_backend: core.psql_dos
 db_host: database
 db_port: 5432