diff --git a/tests/MatrixHttpApiTest.php b/tests/MatrixHttpApiTest.php
index 38f9f4b..159d1dd 100644
--- a/tests/MatrixHttpApiTest.php
+++ b/tests/MatrixHttpApiTest.php
@@ -375,7 +375,7 @@ class MatrixHttpApiTest extends BaseTestCase {
         $req = array_get($container, '0.request');
 
         $this->assertEquals('GET', $req->getMethod());
-        $this->assertContains($this->token, $req->getRequestTarget());
+        $this->assertStringContainsString($this->token, $req->getRequestTarget());
     }
 
     public function testSendUserId() {
@@ -391,7 +391,7 @@ class MatrixHttpApiTest extends BaseTestCase {
         $req = array_get($container, '0.request');
 
         $this->assertEquals('GET', $req->getMethod());
-        $this->assertContains(urlencode($this->userId), $req->getRequestTarget());
+        $this->assertStringContainsString(urlencode($this->userId), $req->getRequestTarget());
     }
 
     public function testSendUnsupMethod() {
@@ -555,7 +555,7 @@ class MatrixHttpApiTest extends BaseTestCase {
         $req = array_get($container, '0.request');
 
         $this->assertEquals('GET', $req->getMethod());
-        $this->assertContains($req->getRequestTarget(), $whoamiUrl);
+        $this->assertStringContainsString($req->getRequestTarget(), $whoamiUrl);
     }
 
     public function testWhoamiUnauth() {