diff --git a/server/migrations/4_add_more_indices.down.sql b/server/migrations/4_add_more_indices.down.sql
new file mode 100644
index 0000000..2a1f0ad
--- /dev/null
+++ b/server/migrations/4_add_more_indices.down.sql
@@ -0,0 +1,2 @@
+drop index questions_publish_date_idx;
+drop index responses_question_id_idx;
diff --git a/server/migrations/4_add_more_indices.up.sql b/server/migrations/4_add_more_indices.up.sql
new file mode 100644
index 0000000..0c36770
--- /dev/null
+++ b/server/migrations/4_add_more_indices.up.sql
@@ -0,0 +1,2 @@
+create index questions_publish_date_idx on questions (publish_date);
+create index responses_question_id_idx on responses (question_id);