diff --git a/test/connection_test.exs b/test/connection_test.exs
index 59919bf..b6958d3 100644
--- a/test/connection_test.exs
+++ b/test/connection_test.exs
@@ -1,5 +1,5 @@
 defmodule Rabbit.ConnectionTest do
-  use ExUnit.Case
+  use ExUnit.Case, async: false
 
   alias Rabbit.Connection
 
diff --git a/test/consumer_supervisor_test.exs b/test/consumer_supervisor_test.exs
index e8751ec..f7441e4 100644
--- a/test/consumer_supervisor_test.exs
+++ b/test/consumer_supervisor_test.exs
@@ -1,5 +1,5 @@
 defmodule Rabbit.ConsumerSupervisorTest do
-  use ExUnit.Case
+  use ExUnit.Case, async: false
 
   alias Rabbit.{Connection, ConsumerSupervisor}
 
diff --git a/test/consumer_test.exs b/test/consumer_test.exs
index 7af384f..ca91f37 100644
--- a/test/consumer_test.exs
+++ b/test/consumer_test.exs
@@ -1,5 +1,5 @@
 defmodule Rabbit.ConsumerTest do
-  use ExUnit.Case
+  use ExUnit.Case, async: false
 
   alias Rabbit.{Connection, Consumer, Producer}
 
diff --git a/test/initializer_test.exs b/test/initializer_test.exs
index c4a6754..5b374d9 100644
--- a/test/initializer_test.exs
+++ b/test/initializer_test.exs
@@ -1,5 +1,5 @@
 defmodule Rabbit.InitializerTest do
-  use ExUnit.Case
+  use ExUnit.Case, async: false
 
   alias Rabbit.{Connection, Consumer, Initializer, Producer}
 
diff --git a/test/producer_test.exs b/test/producer_test.exs
index a0eb4f8..cb67067 100644
--- a/test/producer_test.exs
+++ b/test/producer_test.exs
@@ -1,5 +1,5 @@
 defmodule Rabbit.ProducerTest do
-  use ExUnit.Case
+  use ExUnit.Case, async: false
 
   alias Rabbit.{Connection, Producer}