diff --git a/tests/phpunit/tests/rest-api/rest-post-meta-fields.php b/tests/phpunit/tests/rest-api/rest-post-meta-fields.php
index ae2a13ace6db3..0251aee870f89 100644
--- a/tests/phpunit/tests/rest-api/rest-post-meta-fields.php
+++ b/tests/phpunit/tests/rest-api/rest-post-meta-fields.php
@@ -399,7 +399,7 @@ public function test_get_value_types() {
 		$this->assertSame( '42', $meta['test_string'] );
 
 		$this->assertArrayHasKey( 'test_number', $meta );
-		$this->assertInternalType( 'float', $meta['test_number'] );
+		$this->assertIsFloat( $meta['test_number'] );
 		$this->assertSame( 42.0, $meta['test_number'] );
 
 		$this->assertArrayHasKey( 'test_bool', $meta );
diff --git a/tests/phpunit/tests/rest-api/rest-term-meta-fields.php b/tests/phpunit/tests/rest-api/rest-term-meta-fields.php
index c99a9092eef1f..7340dd46723f0 100644
--- a/tests/phpunit/tests/rest-api/rest-term-meta-fields.php
+++ b/tests/phpunit/tests/rest-api/rest-term-meta-fields.php
@@ -346,7 +346,7 @@ public function test_get_value_types() {
 		$this->assertSame( '42', $meta['test_string'] );
 
 		$this->assertArrayHasKey( 'test_number', $meta );
-		$this->assertInternalType( 'float', $meta['test_number'] );
+		$this->assertIsFloat( $meta['test_number'] );
 		$this->assertSame( 42.0, $meta['test_number'] );
 
 		$this->assertArrayHasKey( 'test_bool', $meta );