diff --git a/test/helpers.js b/test/helpers.js
index c068533..4bf3558 100644
--- a/test/helpers.js
+++ b/test/helpers.js
@@ -1,7 +1,7 @@
 'use strict'
 
 const BAD_DB_NAME = 'db_that_does_not_exist'
-const connectionString = process.env.DATABASE_TEST_URL || 'postgres://postgres:postgres@localhost/postgres'
+const connectionString = process.env.DATABASE_TEST_URL || 'postgres://postgres:postgres@127.0.0.1/postgres'
 const connectionStringBadDbName = connectionString.replace(/\/[^/]+$/, '/' + BAD_DB_NAME)
 
 module.exports = Object.freeze({
diff --git a/test/transaction.test.js b/test/transaction.test.js
index 3f9d4cb..de636d6 100644
--- a/test/transaction.test.js
+++ b/test/transaction.test.js
@@ -13,7 +13,7 @@ const {
 
 test('When fastify.pg root namespace is used:', (t) => {
   t.test('Should be able to use transact util with a callback', (t) => {
-    t.plan(3)
+    t.plan(4)
 
     const fastify = Fastify()
     t.teardown(() => fastify.close())