diff --git a/README.md b/README.md
index d7e6a0f..5a296c4 100644
--- a/README.md
+++ b/README.md
@@ -198,14 +198,6 @@ Features
 
 ### Polyfill traits
 
-#### PHPUnit < 6.4.0: `Yoast\PHPUnitPolyfills\Polyfills\ExpectExceptionObject`
-
-Polyfills the [`TestCase::expectExceptionObject()`] method to test all aspects of an `Exception` by passing an object to the method.
-
-This method was introduced in PHPUnit 6.4.0.
-
-[`TestCase::expectExceptionObject()`]: https://docs.phpunit.de/en/10.5/writing-tests-for-phpunit.html#testing-exceptions
-
 #### PHPUnit < 7.5.0: `Yoast\PHPUnitPolyfills\Polyfills\AssertIsType`
 
 Polyfills the following methods:
diff --git a/phpunitpolyfills-autoload.php b/phpunitpolyfills-autoload.php
index 363ef49..273a5d1 100644
--- a/phpunitpolyfills-autoload.php
+++ b/phpunitpolyfills-autoload.php
@@ -35,10 +35,6 @@ public static function load( $className ) {
 			}
 
 			switch ( $className ) {
-				case 'Yoast\PHPUnitPolyfills\Polyfills\ExpectExceptionObject':
-					self::loadExpectExceptionObject();
-					return true;
-
 				case 'Yoast\PHPUnitPolyfills\Polyfills\AssertIsType':
 					self::loadAssertIsType();
 					return true;
@@ -115,23 +111,6 @@ public static function load( $className ) {
 			return false;
 		}
 
-		/**
-		 * Load the ExpectExceptionObject polyfill or an empty trait with the same name
-		 * if a PHPUnit version is used which already contains this functionality.
-		 *
-		 * @return void
-		 */
-		public static function loadExpectExceptionObject() {
-			if ( \method_exists( TestCase::class, 'expectExceptionObject' ) === false ) {
-				// PHPUnit < 6.4.0.
-				require_once __DIR__ . '/src/Polyfills/ExpectExceptionObject.php';
-				return;
-			}
-
-			// PHPUnit >= 6.4.0.
-			require_once __DIR__ . '/src/Polyfills/ExpectExceptionObject_Empty.php';
-		}
-
 		/**
 		 * Load the AssertIsType polyfill or an empty trait with the same name
 		 * if a PHPUnit version is used which already contains this functionality.
diff --git a/src/Polyfills/ExpectExceptionObject.php b/src/Polyfills/ExpectExceptionObject.php
deleted file mode 100644
index 682cfe6..0000000
--- a/src/Polyfills/ExpectExceptionObject.php
+++ /dev/null
@@ -1,28 +0,0 @@
-<?php
-
-namespace Yoast\PHPUnitPolyfills\Polyfills;
-
-use Exception;
-
-/**
- * Polyfill the TestCase::expectExceptionObject() method.
- *
- * Introduced in PHPUnit 6.4.0.
- *
- * @link https://github.com/sebastianbergmann/phpunit/pull/2780
- */
-trait ExpectExceptionObject {
-
-	/**
-	 * Set expectations for an expected Exception based on an Exception object.
-	 *
-	 * @param Exception $exception Exception object.
-	 *
-	 * @return void
-	 */
-	final public function expectExceptionObject( Exception $exception ) {
-		$this->expectException( \get_class( $exception ) );
-		$this->expectExceptionMessage( $exception->getMessage() );
-		$this->expectExceptionCode( $exception->getCode() );
-	}
-}
diff --git a/src/Polyfills/ExpectExceptionObject_Empty.php b/src/Polyfills/ExpectExceptionObject_Empty.php
deleted file mode 100644
index 499bee2..0000000
--- a/src/Polyfills/ExpectExceptionObject_Empty.php
+++ /dev/null
@@ -1,8 +0,0 @@
-<?php
-
-namespace Yoast\PHPUnitPolyfills\Polyfills;
-
-/**
- * Empty trait for use with PHPUnit >= 6.4.0 in which this polyfill is not needed.
- */
-trait ExpectExceptionObject {}
diff --git a/src/TestCases/TestCasePHPUnitLte7.php b/src/TestCases/TestCasePHPUnitLte7.php
index 9fb9801..b1a6464 100644
--- a/src/TestCases/TestCasePHPUnitLte7.php
+++ b/src/TestCases/TestCasePHPUnitLte7.php
@@ -16,7 +16,6 @@
 use Yoast\PHPUnitPolyfills\Polyfills\AssertStringContains;
 use Yoast\PHPUnitPolyfills\Polyfills\EqualToSpecializations;
 use Yoast\PHPUnitPolyfills\Polyfills\ExpectExceptionMessageMatches;
-use Yoast\PHPUnitPolyfills\Polyfills\ExpectExceptionObject;
 
 /**
  * Basic test case for use with PHPUnit <= 7.
@@ -42,7 +41,6 @@ abstract class TestCase extends PHPUnit_TestCase {
 	use AssertStringContains;
 	use EqualToSpecializations;
 	use ExpectExceptionMessageMatches;
-	use ExpectExceptionObject;
 
 	/**
 	 * This method is called before the first test of this test class is run.
diff --git a/src/TestCases/XTestCase.php b/src/TestCases/XTestCase.php
index 328f4f9..acde81b 100644
--- a/src/TestCases/XTestCase.php
+++ b/src/TestCases/XTestCase.php
@@ -20,7 +20,6 @@
 use Yoast\PHPUnitPolyfills\Polyfills\AssertStringContains;
 use Yoast\PHPUnitPolyfills\Polyfills\EqualToSpecializations;
 use Yoast\PHPUnitPolyfills\Polyfills\ExpectExceptionMessageMatches;
-use Yoast\PHPUnitPolyfills\Polyfills\ExpectExceptionObject;
 
 /**
  * Basic test case for use with PHPUnit cross-version.
@@ -48,7 +47,6 @@ abstract class XTestCase extends PHPUnit_TestCase {
 	use AssertStringContains;
 	use EqualToSpecializations;
 	use ExpectExceptionMessageMatches;
-	use ExpectExceptionObject;
 
 	/**
 	 * This method is called before the first test of this test class is run.
diff --git a/tests/Polyfills/ExpectExceptionObjectTest.php b/tests/Polyfills/ExpectExceptionObjectTest.php
deleted file mode 100644
index 3d23c52..0000000
--- a/tests/Polyfills/ExpectExceptionObjectTest.php
+++ /dev/null
@@ -1,33 +0,0 @@
-<?php
-
-namespace Yoast\PHPUnitPolyfills\Tests\Polyfills;
-
-use Exception;
-use PHPUnit\Framework\Attributes\CoversClass;
-use PHPUnit\Framework\TestCase;
-use Yoast\PHPUnitPolyfills\Polyfills\ExpectExceptionObject;
-
-/**
- * Availability test for the function polyfilled by the ExpectExceptionObject trait.
- *
- * @covers \Yoast\PHPUnitPolyfills\Polyfills\ExpectExceptionObject
- */
-#[CoversClass( ExpectExceptionObject::class )]
-final class ExpectExceptionObjectTest extends TestCase {
-
-	use ExpectExceptionObject;
-
-	/**
-	 * Verify availability of the expectExceptionObject() method.
-	 *
-	 * @return void
-	 *
-	 * @throws Exception For testing purposes.
-	 */
-	public function testExpectExceptionObject() {
-		$exception = new Exception( 'message', 101 );
-		$this->expectExceptionObject( $exception );
-
-		throw new Exception( 'message', 101 );
-	}
-}
diff --git a/tests/TestCases/TestCaseTestTrait.php b/tests/TestCases/TestCaseTestTrait.php
index ae9a67b..9bdacf6 100644
--- a/tests/TestCases/TestCaseTestTrait.php
+++ b/tests/TestCases/TestCaseTestTrait.php
@@ -25,20 +25,6 @@ final public static function dataHaveFixtureMethodsBeenTriggered() {
 		];
 	}
 
-	/**
-	 * Test availability of trait polyfilled PHPUnit methods [1].
-	 *
-	 * @return void
-	 *
-	 * @throws Exception For testing purposes.
-	 */
-	final public function testAvailabilityExpectExceptionObjectTrait() {
-		$exception = new Exception( 'message', 101 );
-		$this->expectExceptionObject( $exception );
-
-		throw new Exception( 'message', 101 );
-	}
-
 	/**
 	 * Test availability of trait polyfilled PHPUnit methods [2].
 	 *