diff --git a/deployments/data101/config/common.yaml b/deployments/data101/config/common.yaml
index 2d7260195..1de2f50c3 100644
--- a/deployments/data101/config/common.yaml
+++ b/deployments/data101/config/common.yaml
@@ -56,7 +56,7 @@ jupyterhub:
               annotations=annotations
           )
 
-        make_db_pvc = partial(make_extra_pvc, 'db-storage', 'db-{username}', 'standard', '2G')
+        make_db_pvc = partial(make_extra_pvc, 'db-storage', 'db-{username}', 'standard', '4G')
         make_mongo_pvc = partial(make_extra_pvc, 'mongo-storage', 'mongo-{username}', 'standard', '2G')
 
         pvc_makers = (make_db_pvc, make_mongo_pvc)