diff --git a/tests/thinkphp/library/think/cache/driver/cacheTestCase.php b/tests/thinkphp/library/think/cache/driver/cacheTestCase.php
index 2bf87f58..9fb2b857 100644
--- a/tests/thinkphp/library/think/cache/driver/cacheTestCase.php
+++ b/tests/thinkphp/library/think/cache/driver/cacheTestCase.php
@@ -114,10 +114,10 @@ abstract class cacheTestCase extends \PHPUnit_Framework_TestCase
     public function testExpire()
     {
         $cache = $this->getCacheInstance();
-        $this->assertTrue($cache->set('expire_test', 'expire_test', 2));
-        usleep(500000);
+        $this->assertTrue($cache->set('expire_test', 'expire_test', 1));
+        usleep(600000);
         $this->assertEquals('expire_test', $cache->get('expire_test'));
-        usleep(2500000);
+        usleep(800000);
         $this->assertFalse($cache->get('expire_test'));
     }
     /**
diff --git a/tests/thinkphp/library/think/debugTest.php b/tests/thinkphp/library/think/debugTest.php
index 98258c13..cbfa47c6 100644
--- a/tests/thinkphp/library/think/debugTest.php
+++ b/tests/thinkphp/library/think/debugTest.php
@@ -77,7 +77,7 @@ class debugTest extends \PHPUnit_Framework_TestCase
     public function testGetUseTime()
     {
         $time = \think\Debug::getUseTime();
-        $this->assertLessThan(3.5, $time);
+        $this->assertLessThan(5.5, $time);
     }
 
     /**