diff --git a/config/test.exs b/config/test.exs
index 9d6784e..01a8ae8 100644
--- a/config/test.exs
+++ b/config/test.exs
@@ -9,7 +9,7 @@ config :mv, Mv.Repo,
   username: "postgres",
   password: "postgres",
   hostname: System.get_env("TEST_POSTGRES_HOST", "localhost"),
-  port: System.get_env("TEST_POSTGRES_PORT", 5000),
+  port: System.get_env("TEST_POSTGRES_PORT", "5000"),
   database: "mv_test#{System.get_env("MIX_TEST_PARTITION")}",
   pool: Ecto.Adapters.SQL.Sandbox,
   pool_size: System.schedulers_online() * 2