diff --git a/src/php/tests/unit_tests/TimevalTest.php b/src/php/tests/unit_tests/TimevalTest.php
index cc8e40d00ac..ee944896fc2 100644
--- a/src/php/tests/unit_tests/TimevalTest.php
+++ b/src/php/tests/unit_tests/TimevalTest.php
@@ -64,18 +64,6 @@ class TimevalTest extends \PHPUnit\Framework\TestCase
         $this->assertSame('Grpc\Timeval', get_class($this->time));
     }
 
-    public function testConstructorWithFloat()
-    {
-        if (version_compare(PHP_VERSION, '8.1.0') >= 0) {
-            $this->markTestSkipped('implicit float to int cast deprecated in 8.1+');
-        }
-        $this->time = new Grpc\Timeval(123.456);
-        $this->assertNotNull($this->time);
-        $this->assertSame('Grpc\Timeval', get_class($this->time));
-        $timeFromInt = new Grpc\Timeval(123);
-        $this->assertSame(0, Grpc\Timeval::compare($this->time, $timeFromInt));
-    }
-
     public function testConstructorWithBigInt()
     {
         $this->time = new Grpc\Timeval(7200000000); // > 2^32