diff --git a/db/migrate/20190404140234_change_log_domains_children_type_to_jsonb.rb b/db/migrate/20190404140234_change_log_domains_children_type_to_jsonb.rb
new file mode 100644
index 0000000000..b511d7293e
--- /dev/null
+++ b/db/migrate/20190404140234_change_log_domains_children_type_to_jsonb.rb
@@ -0,0 +1,5 @@
+class ChangeLogDomainsChildrenTypeToJsonb < ActiveRecord::Migration
+  def change
+    change_column :log_domains, :children, 'jsonb USING children::jsonb'
+  end
+end
\ No newline at end of file
diff --git a/db/structure.sql b/db/structure.sql
index 08ed08c47b..389a9a374a 100644
--- a/db/structure.sql
+++ b/db/structure.sql
@@ -1543,7 +1543,7 @@ CREATE TABLE public.log_domains (
     tech_contact_ids text[] DEFAULT '{}'::text[],
     admin_contact_ids text[] DEFAULT '{}'::text[],
     session character varying,
-    children json,
+    children jsonb,
     uuid character varying
 );
 
@@ -4940,3 +4940,5 @@ INSERT INTO schema_migrations (version) VALUES ('20190322152123');
 
 INSERT INTO schema_migrations (version) VALUES ('20190322152529');
 
+INSERT INTO schema_migrations (version) VALUES ('20190404140234');
+