diff --git a/guix-data-service/jobs/load-new-guix-revision.scm b/guix-data-service/jobs/load-new-guix-revision.scm
index cd76127..f82b27e 100644
--- a/guix-data-service/jobs/load-new-guix-revision.scm
+++ b/guix-data-service/jobs/load-new-guix-revision.scm
@@ -1885,6 +1885,7 @@ SELECT 1 FROM derivation_source_file_nars WHERE derivation_source_file_id = $1"
        db-conn)
      1
      #:destructor (const #t)            ; TODO Remove
+     #:add-resources-parallelism 1      ; TODO Remove
      #:name "postgres"
      #:min-size 0))
 
@@ -2231,6 +2232,7 @@ SELECT 1 FROM derivation_source_file_nars WHERE derivation_source_file_id = $1"
                  (const channel-instances-conn)
                  1
                  #:destructor (const #t) ; TODO Remove
+                 #:add-resources-parallelism 1 ; TODO Remove
                  #:name "postgres"
                  #:min-size 0)))