diff --git a/migrations/20210814090340_visit_counter.js b/migrations/20210814090340_visit_counter.js
index e7d2928..0b44252 100644
--- a/migrations/20210814090340_visit_counter.js
+++ b/migrations/20210814090340_visit_counter.js
@@ -1,7 +1,10 @@
 
 exports.up = function (knex) {
-    return knex.schema.table('urls', function (table) {
-        table.integer('visits');
+    return knex.schema.createTable('visits', function (table) {
+        table.timestamp('timestamp').defaultTo(knex.fn.now());
+        table.string('shortcode');
+        table.primary(['shortcode', 'timestamp']);
+        table.foreign('shortcode').references('shortcode').inTable('urls');
     });
 };