diff --git a/resources/migrations/20171122123809-pr-created-at.down.sql b/resources/migrations/20171122123809-pr-created-at.down.sql
new file mode 100644
index 0000000..e69de29
diff --git a/resources/migrations/20171122123809-pr-created-at.up.sql b/resources/migrations/20171122123809-pr-created-at.up.sql
new file mode 100644
index 0000000..de7e2db
--- /dev/null
+++ b/resources/migrations/20171122123809-pr-created-at.up.sql
@@ -0,0 +1 @@
+ALTER TABLE "public"."pull_requests" ADD COLUMN "created_at" timestamp without time zone DEFAULT timezone('utc'::text, now());