diff --git a/tests/src/Core/Logger/AbstractLoggerTest.php b/tests/src/Core/Logger/AbstractLoggerTest.php
index d85e754c3..64ff1e79f 100644
--- a/tests/src/Core/Logger/AbstractLoggerTest.php
+++ b/tests/src/Core/Logger/AbstractLoggerTest.php
@@ -31,7 +31,7 @@ abstract class AbstractLoggerTest extends MockedTest
 {
 	use LoggerDataTrait;
 
-	const LOGLINE = '/.* \[.*\]: .* \{.*\"file\":\".*\".*,.*\"line\":\d*,.*\"function\":\".*\".*,.*\"uid\":\".*\".*}/';
+	const LOGLINE = '/.* \[.*]: .* {.*\"file\":\".*\".*,.*\"line\":\d*,.*\"function\":\".*\".*,.*\"uid\":\".*\".*}/';
 
 	const FILE = 'test';
 	const LINE = 666;
@@ -72,7 +72,7 @@ abstract class AbstractLoggerTest extends MockedTest
 
 	public function assertLogline($string)
 	{
-		self::assertRegExp(self::LOGLINE, $string);
+		self::assertMatchesRegularExpression(self::LOGLINE, $string);
 	}
 
 	public function assertLoglineNums($assertNum, $string)
diff --git a/tests/src/Core/Logger/WorkerLoggerTest.php b/tests/src/Core/Logger/WorkerLoggerTest.php
index 39b217552..bec08494b 100644
--- a/tests/src/Core/Logger/WorkerLoggerTest.php
+++ b/tests/src/Core/Logger/WorkerLoggerTest.php
@@ -29,7 +29,7 @@ class WorkerLoggerTest extends MockedTest
 {
 	private function assertUid($uid)
 	{
-		self::assertRegExp('/^[a-zA-Z0-9]{' . WorkerLogger::WORKER_ID_LENGTH . '}+$/', $uid);
+		self::assertMatchesRegularExpression('/^[a-zA-Z0-9]{' . WorkerLogger::WORKER_ID_LENGTH . '}+$/', $uid);
 	}
 
 	public function dataTest()
diff --git a/tests/src/Core/SystemTest.php b/tests/src/Core/SystemTest.php
index f37d2a293..8dc43f36f 100644
--- a/tests/src/Core/SystemTest.php
+++ b/tests/src/Core/SystemTest.php
@@ -42,7 +42,7 @@ class SystemTest extends TestCase
 	private function assertGuid($guid, $length, $prefix = '')
 	{
 		$length -= strlen($prefix);
-		self::assertRegExp("/^" . $prefix . "[a-z0-9]{" . $length . "}?$/", $guid);
+		self::assertMatchesRegularExpression("/^" . $prefix . "[a-z0-9]{" . $length . "}?$/", $guid);
 	}
 
 	public function testGuidWithoutParameter()
diff --git a/tests/src/Util/ProfilerTest.php b/tests/src/Util/ProfilerTest.php
index 9a9492d17..6e0eb80f3 100644
--- a/tests/src/Util/ProfilerTest.php
+++ b/tests/src/Util/ProfilerTest.php
@@ -229,7 +229,7 @@ class ProfilerTest extends MockedTest
 		foreach ($data as $perf => $items) {
 			foreach ($items['functions'] as $function) {
 				// assert that the output contains the functions
-				self::assertRegExp('/' . $function . ': \d+/', $output);
+				self::assertMatchesRegularExpression('/' . $function . ': \d+/', $output);
 			}
 		}
 	}
@@ -286,7 +286,7 @@ class ProfilerTest extends MockedTest
 
 		self::assertTrue($profiler->isRendertime());
 		$output = $profiler->getRendertimeString();
-		self::assertRegExp('/test1: \d+/', $output);
-		self::assertRegExp('/test2: \d+/', $output);
+		self::assertMatchesRegularExpression('/test1: \d+/', $output);
+		self::assertMatchesRegularExpression('/test2: \d+/', $output);
 	}
 }