diff --git a/test/support/audit_logs_client_mock.ex b/test/support/audit_logs_client_mock.ex
index 2f2e8bf..a6567db 100644
--- a/test/support/audit_logs_client_mock.ex
+++ b/test/support/audit_logs_client_mock.ex
@@ -1,7 +1,7 @@
 defmodule WorkOS.AuditLogs.ClientMock do
   @moduledoc false
 
-  use ExUnit.Case
+  import ExUnit.Assertions, only: [assert: 1]
 
   def create_event(context, opts \\ []) do
     Tesla.Mock.mock(fn request ->
diff --git a/test/support/directory_sync_client_mock.ex b/test/support/directory_sync_client_mock.ex
index f193b80..35de0dd 100644
--- a/test/support/directory_sync_client_mock.ex
+++ b/test/support/directory_sync_client_mock.ex
@@ -1,7 +1,7 @@
 defmodule WorkOS.DirectorySync.ClientMock do
   @moduledoc false
 
-  use ExUnit.Case
+  import ExUnit.Assertions, only: [assert: 1]
 
   @directory_group_response %{
     "id" => "dir_grp_123",
diff --git a/test/support/events_client_mock.ex b/test/support/events_client_mock.ex
index 93b5151..c1746ba 100644
--- a/test/support/events_client_mock.ex
+++ b/test/support/events_client_mock.ex
@@ -1,7 +1,7 @@
 defmodule WorkOS.Events.ClientMock do
   @moduledoc false
 
-  use ExUnit.Case
+  import ExUnit.Assertions, only: [assert: 1]
 
   def list_events(context, opts \\ []) do
     Tesla.Mock.mock(fn request ->
diff --git a/test/support/organization_domains_client_mock.ex b/test/support/organization_domains_client_mock.ex
index 00769f8..9c12475 100644
--- a/test/support/organization_domains_client_mock.ex
+++ b/test/support/organization_domains_client_mock.ex
@@ -1,7 +1,7 @@
 defmodule WorkOS.OrganizationDomains.ClientMock do
   @moduledoc false
 
-  use ExUnit.Case
+  import ExUnit.Assertions, only: [assert: 1]
 
   @organization_domain_mock %{
     "object" => "organization_domain",
diff --git a/test/support/organizations_client_mock.ex b/test/support/organizations_client_mock.ex
index da151dd..d7076a0 100644
--- a/test/support/organizations_client_mock.ex
+++ b/test/support/organizations_client_mock.ex
@@ -1,7 +1,7 @@
 defmodule WorkOS.Organizations.ClientMock do
   @moduledoc false
 
-  use ExUnit.Case
+  import ExUnit.Assertions, only: [assert: 1]
 
   def list_organizations(context, opts \\ []) do
     Tesla.Mock.mock(fn request ->
diff --git a/test/support/passwordless_client_mock.ex b/test/support/passwordless_client_mock.ex
index f597d3b..c87eccf 100644
--- a/test/support/passwordless_client_mock.ex
+++ b/test/support/passwordless_client_mock.ex
@@ -1,7 +1,7 @@
 defmodule WorkOS.Passwordless.ClientMock do
   @moduledoc false
 
-  use ExUnit.Case
+  import ExUnit.Assertions, only: [assert: 1]
 
   def create_session(context, opts \\ []) do
     Tesla.Mock.mock(fn request ->
diff --git a/test/support/portal_client_mock.ex b/test/support/portal_client_mock.ex
index 94d87d8..28bb434 100644
--- a/test/support/portal_client_mock.ex
+++ b/test/support/portal_client_mock.ex
@@ -1,7 +1,7 @@
 defmodule WorkOS.Portal.ClientMock do
   @moduledoc false
 
-  use ExUnit.Case
+  import ExUnit.Assertions, only: [assert: 1]
 
   def generate_link(context, opts \\ []) do
     Tesla.Mock.mock(fn request ->
diff --git a/test/support/sso_client_mock.ex b/test/support/sso_client_mock.ex
index fa51d72..ba4ac0f 100644
--- a/test/support/sso_client_mock.ex
+++ b/test/support/sso_client_mock.ex
@@ -1,7 +1,7 @@
 defmodule WorkOS.SSO.ClientMock do
   @moduledoc false
 
-  use ExUnit.Case
+  import ExUnit.Assertions, only: [assert: 1]
 
   def get_profile_and_token(context, opts \\ []) do
     Tesla.Mock.mock(fn request ->
diff --git a/test/support/user_management_client_mock.ex b/test/support/user_management_client_mock.ex
index d49decb..036e5e4 100644
--- a/test/support/user_management_client_mock.ex
+++ b/test/support/user_management_client_mock.ex
@@ -1,7 +1,7 @@
 defmodule WorkOS.UserManagement.ClientMock do
   @moduledoc false
 
-  use ExUnit.Case
+  import ExUnit.Assertions, only: [assert: 1]
 
   @user_mock %{
     "object" => "user",