diff --git a/tests/Command/BurndownCommandTest.php b/tests/Command/BurndownCommandTest.php
index 2ecaafb..0434dc6 100644
--- a/tests/Command/BurndownCommandTest.php
+++ b/tests/Command/BurndownCommandTest.php
@@ -10,7 +10,7 @@ class BurndownCommandTest extends \PHPUnit\Framework\TestCase
 {
     public function testConfigure(): void
     {
-        $trello = $this->createMock('\TrelloCli\Client');
+        $trello = $this->createStub('\TrelloCli\Client');
 
         $command = new BurndownCommand($trello);
 
diff --git a/tests/Command/JsonExportBoardCommandTest.php b/tests/Command/JsonExportBoardCommandTest.php
index e36ae55..1a12f61 100644
--- a/tests/Command/JsonExportBoardCommandTest.php
+++ b/tests/Command/JsonExportBoardCommandTest.php
@@ -10,7 +10,7 @@ class JsonExportBoardCommandTest extends \PHPUnit\Framework\TestCase
 {
     public function testConfigure(): void
     {
-        $trello = $this->createMock('\TrelloCli\Client');
+        $trello = $this->createStub('\TrelloCli\Client');
 
         $command = new JsonExportBoardCommand($trello);
 
diff --git a/tests/Command/LabelCardsCommandTest.php b/tests/Command/LabelCardsCommandTest.php
index ad49503..436c92a 100644
--- a/tests/Command/LabelCardsCommandTest.php
+++ b/tests/Command/LabelCardsCommandTest.php
@@ -10,7 +10,7 @@ class LabelCardsCommandTest extends \PHPUnit\Framework\TestCase
 {
     public function testConfigure(): void
     {
-        $trello = $this->createMock('\TrelloCli\Client');
+        $trello = $this->createStub('\TrelloCli\Client');
 
         $command = new LabelCardsCommand($trello);
 
diff --git a/tests/Command/ListBoardsCommandTest.php b/tests/Command/ListBoardsCommandTest.php
index 8fafa29..aa746e0 100644
--- a/tests/Command/ListBoardsCommandTest.php
+++ b/tests/Command/ListBoardsCommandTest.php
@@ -11,7 +11,7 @@ class ListBoardsCommandTest extends \PHPUnit\Framework\TestCase
 {
     public function testConfigure(): void
     {
-        $trello = $this->createMock('\TrelloCli\Client');
+        $trello = $this->createStub('\TrelloCli\Client');
 
         $command = new ListBoardsCommand($trello);
 
@@ -24,7 +24,7 @@ public function testConfigure(): void
 
     public function testExecuteCanRenderWhatWeWant(): void
     {
-        $client = $this->createMock('\TrelloCli\Client');
+        $client = $this->createStub('\TrelloCli\Client');
         $client
             ->method('getBoards')
             ->willReturn([['name' => 'Films', 'closed' => false]]);
diff --git a/tests/Command/ListCardsCommandTest.php b/tests/Command/ListCardsCommandTest.php
index 6822658..6b9500d 100644
--- a/tests/Command/ListCardsCommandTest.php
+++ b/tests/Command/ListCardsCommandTest.php
@@ -10,7 +10,7 @@ class ListCardsCommandTest extends \PHPUnit\Framework\TestCase
 {
     public function testConfigure(): void
     {
-        $trello = $this->createMock('\TrelloCli\Client');
+        $trello = $this->createStub('\TrelloCli\Client');
 
         $command = new ListCardsCommand($trello);
 
diff --git a/tests/Command/ListPeopleCommandTest.php b/tests/Command/ListPeopleCommandTest.php
index ff7ccdd..68b09b6 100644
--- a/tests/Command/ListPeopleCommandTest.php
+++ b/tests/Command/ListPeopleCommandTest.php
@@ -10,7 +10,7 @@ class ListPeopleCommandTest extends \PHPUnit\Framework\TestCase
 {
     public function testConfigure(): void
     {
-        $trello = $this->createMock('\TrelloCli\Client');
+        $trello = $this->createStub('\TrelloCli\Client');
 
         $command = new ListPeopleCommand($trello);
 
diff --git a/tests/Command/SortCommandTest.php b/tests/Command/SortCommandTest.php
index 41467f6..78d2de1 100644
--- a/tests/Command/SortCommandTest.php
+++ b/tests/Command/SortCommandTest.php
@@ -10,7 +10,7 @@ class SortCommandTest extends \PHPUnit\Framework\TestCase
 {
     public function testConfigure(): void
     {
-        $trello = $this->createMock('\TrelloCli\Client');
+        $trello = $this->createStub('\TrelloCli\Client');
 
         $command = new SortCommand($trello);