diff --git a/README.md b/README.md
index dccb6d53..1ab1180a 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@
 <a href="https://dev.azure.com/blessing-skin/Blessing%20Skin%20Server/_build?definitionId=3"><img src="https://flat.badgen.net/azure-pipelines/blessing-skin/Blessing%20Skin%20Server/blessing-skin-server/v4" alt="Azure Pipelines Status"></a>
 <a href="https://codecov.io/gh/bs-community/blessing-skin-server/branch/v4"><img src="https://flat.badgen.net/codecov/c/github/bs-community/blessing-skin-server/v4" alt="Codecov" /></a>
 <a href="https://github.com/bs-community/blessing-skin-server/releases"><img src="https://flat.badgen.net/github/releases/bs-community/blessing-skin-server" alt="Latest Stable Version"></a>
-<img src="https://flat.badgen.net/badge/PHP/7.1.3+/orange" alt="PHP 7.1.3+">
+<img src="https://flat.badgen.net/badge/PHP/7.1.8+/orange" alt="PHP 7.1.8+">
 <img src="https://flat.badgen.net/github/license/bs-community/blessing-skin-server" alt="License">
 <a href="https://twitter.com/printempw"><img src="https://img.shields.io/twitter/follow/printempw.svg?style=social&label=Follow" alt="Twitter Follow"></a>
 </p>
@@ -43,7 +43,7 @@ Blessing Skin 是一个开源的 PHP 项目，这意味着您可以自由地在
 Blessing Skin 对您的服务器有一定的要求。_在大多数情况下，下列所需的 PHP 扩展已经开启。_
 
 - 一台支持 URL 重写的主机，Nginx、Apache 或 IIS
-- **PHP >= 7.1.3** [（服务器不支持？）](https://github.com/bs-community/blessing-skin-server/wiki/%E7%89%88%E6%9C%AC%E8%AF%B4%E6%98%8E)
+- **PHP >= 7.1.8** [（服务器不支持？）](https://github.com/bs-community/blessing-skin-server/wiki/%E7%89%88%E6%9C%AC%E8%AF%B4%E6%98%8E)
 - 安装并启用如下 PHP 扩展：
     - OpenSSL
     - PDO
diff --git a/README_EN.md b/README_EN.md
index 89c81201..53a4b270 100644
--- a/README_EN.md
+++ b/README_EN.md
@@ -7,7 +7,7 @@
 <a href="https://dev.azure.com/blessing-skin/Blessing%20Skin%20Server/_build?definitionId=3"><img src="https://flat.badgen.net/azure-pipelines/blessing-skin/Blessing%20Skin%20Server/blessing-skin-server/v4" alt="Azure Pipelines Status"></a>
 <a href="https://codecov.io/gh/bs-community/blessing-skin-server/branch/v4"><img src="https://flat.badgen.net/codecov/c/github/bs-community/blessing-skin-server/v4" alt="Codecov" /></a>
 <a href="https://github.com/bs-community/blessing-skin-server/releases"><img src="https://flat.badgen.net/github/releases/bs-community/blessing-skin-server" alt="Latest Stable Version"></a>
-<img src="https://flat.badgen.net/badge/PHP/7.1.3+/orange" alt="PHP 7.1.3+">
+<img src="https://flat.badgen.net/badge/PHP/7.1.8+/orange" alt="PHP 7.1.8+">
 <img src="https://flat.badgen.net/github/license/bs-community/blessing-skin-server" alt="License">
 <a href="https://twitter.com/printempw"><img src="https://img.shields.io/twitter/follow/printempw.svg?style=social&label=Follow" alt="Twitter Follow"></a>
 </p>
@@ -43,7 +43,7 @@ Requirements
 Blessing Skin has only a few system requirements. _In most cases, these PHP extensions are already enabled._
 
 - Web server with URL rewriting enabled
-- **PHP >= 7.1.3** (use v2.x branch if your server doesn't meet the requirements)
+- **PHP >= 7.1.8** (use v2.x branch if your server doesn't meet the requirements)
 - OpenSSL PHP Extension
 - PDO PHP Extension
 - Mbstring PHP Extension
diff --git a/bootstrap/chkenv.php b/bootstrap/chkenv.php
index 1e894040..1eb4ad55 100644
--- a/bootstrap/chkenv.php
+++ b/bootstrap/chkenv.php
@@ -7,10 +7,10 @@
         exit($error);
     }
 
-    if (version_compare(PHP_VERSION, '7.1.3', '<')) {
+    if (version_compare(PHP_VERSION, '7.1.8', '<')) {
         die_with_utf8_encoding(
-            '[Error] Blessing Skin requires PHP version >= 7.1.3, you are now using '.PHP_VERSION.'<br>'.
-            '[错误] 你的 PHP 版本过低（'.PHP_VERSION.'），Blessing Skin 要求至少为 7.1.3'
+            '[Error] Blessing Skin requires PHP version >= 7.1.8, you are now using '.PHP_VERSION.'<br>'.
+            '[错误] 你的 PHP 版本过低（'.PHP_VERSION.'），Blessing Skin 要求至少为 7.1.8'
         );
     }