diff --git a/composer.json b/composer.json
index 92ec96b..d360777 100644
--- a/composer.json
+++ b/composer.json
@@ -31,8 +31,8 @@
         "ext-bz2": "*",
         "ext-openssl": "*",
         "ext-fileinfo": "*",
+        "guzzlehttp/psr7": "^1.6",
         "phpunit/phpunit": "^4.8|^5.7",
-        "zendframework/zend-diactoros": "^1.4",
         "symfony/var-dumper": "^3.0|^4.0|^5.0"
     },
     "autoload": {
@@ -55,11 +55,5 @@
     "scripts": {
         "php:fix": "php .php_cs --force",
         "php:fix:debug": "php .php_cs"
-    },
-    "extra": {
-        "branch-alias": {
-            "dev-master": "3.1.x-dev",
-            "dev-develop": "3.2.x-dev"
-        }
     }
 }
diff --git a/tests/ZipFileTest.php b/tests/ZipFileTest.php
index a701c48..b98baaf 100644
--- a/tests/ZipFileTest.php
+++ b/tests/ZipFileTest.php
@@ -2,6 +2,7 @@
 
 namespace PhpZip\Tests;
 
+use GuzzleHttp\Psr7\Response;
 use PhpZip\Constants\ZipCompressionLevel;
 use PhpZip\Constants\ZipCompressionMethod;
 use PhpZip\Constants\ZipPlatform;
@@ -14,7 +15,6 @@ use PhpZip\Model\ZipInfo;
 use PhpZip\Util\FilesUtil;
 use PhpZip\ZipFile;
 use Psr\Http\Message\ResponseInterface;
-use Zend\Diactoros\Response;
 
 /**
  * ZipFile test.