diff --git a/tests/Spout/Common/Entity/Style/BorderTest.php b/tests/Spout/Common/Entity/Style/BorderTest.php
index ef8b5b8..fa1e7ef 100644
--- a/tests/Spout/Common/Entity/Style/BorderTest.php
+++ b/tests/Spout/Common/Entity/Style/BorderTest.php
@@ -22,7 +22,7 @@ class BorderTest extends TestCase
         $withConstructorParams = new Border([
             new BorderPart(Border::LEFT),
         ]);
-        $this->assertTrue(true);
+        $this->expectNotToPerformAssertions();
     }
 
     /**
diff --git a/tests/Spout/Writer/CSV/WriterTest.php b/tests/Spout/Writer/CSV/WriterTest.php
index 59309b3..4db324d 100644
--- a/tests/Spout/Writer/CSV/WriterTest.php
+++ b/tests/Spout/Writer/CSV/WriterTest.php
@@ -89,7 +89,7 @@ class WriterTest extends TestCase
         $writer->openToFile($resourcePath);
         $writer->close();
         $writer->close(); // This call should not cause any error
-        $this->assertTrue(true);
+        $this->expectNotToPerformAssertions();
     }
 
     /**
diff --git a/tests/Spout/Writer/Common/Entity/SheetTest.php b/tests/Spout/Writer/Common/Entity/SheetTest.php
index 8c23675..cb19d6f 100644
--- a/tests/Spout/Writer/Common/Entity/SheetTest.php
+++ b/tests/Spout/Writer/Common/Entity/SheetTest.php
@@ -101,7 +101,7 @@ class SheetTest extends TestCase
         $sheet = $this->createSheet(0, 'workbookId1');
         $sheet->setName($customSheetName);
         $sheet->setName($customSheetName);
-        $this->assertTrue(true);
+        $this->expectNotToPerformAssertions();
     }
 
     /**
@@ -135,6 +135,6 @@ class SheetTest extends TestCase
 
         $sheet = $this->createSheet(1, 'workbookId3');
         $sheet->setName($customSheetName);
-        $this->assertTrue(true);
+        $this->expectNotToPerformAssertions();
     }
 }
diff --git a/tests/Spout/Writer/ODS/WriterTest.php b/tests/Spout/Writer/ODS/WriterTest.php
index 2390208..8527249 100644
--- a/tests/Spout/Writer/ODS/WriterTest.php
+++ b/tests/Spout/Writer/ODS/WriterTest.php
@@ -201,7 +201,7 @@ class WriterTest extends TestCase
         $writer->openToFile($resourcePath);
         $writer->close();
         $writer->close(); // This call should not cause any error
-        $this->assertTrue(true);
+        $this->expectNotToPerformAssertions();
     }
 
     /**
diff --git a/tests/Spout/Writer/XLSX/WriterTest.php b/tests/Spout/Writer/XLSX/WriterTest.php
index 677c912..fa6fc54 100644
--- a/tests/Spout/Writer/XLSX/WriterTest.php
+++ b/tests/Spout/Writer/XLSX/WriterTest.php
@@ -233,7 +233,7 @@ class WriterTest extends TestCase
         $writer->openToFile($resourcePath);
         $writer->close();
         $writer->close(); // This call should not cause any error
-        $this->assertTrue(true);
+        $this->expectNotToPerformAssertions();
     }
 
     /**