diff --git a/config/test.exs b/config/test.exs
index c920f670..5fe9f4b9 100644
--- a/config/test.exs
+++ b/config/test.exs
@@ -8,7 +8,6 @@ config :ex_unit,
   refute_receive_timeout: 100
 
 default_config = [
-  idle_interval: 100,
   username: "postgres",
   password: "postgres",
   database: "eventstore_test",