diff --git a/plugins/scaffolder-backend/migrations/20210409225200_secrets.js b/plugins/scaffolder-backend/migrations/20210409225200_secrets.js
index e1bd6d2a51..e96f406782 100644
--- a/plugins/scaffolder-backend/migrations/20210409225200_secrets.js
+++ b/plugins/scaffolder-backend/migrations/20210409225200_secrets.js
@@ -22,7 +22,7 @@
 exports.up = async function up(knex) {
   await knex.schema.alterTable('tasks', table => {
     table
-      .string('secrets')
+      .text('secrets')
       .nullable()
       .comment('JSON encoded secrets to authenticate tasks with');
   });