diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 734f58e2..663fd102 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -43,8 +43,7 @@ jobs:
       run: composer install --prefer-dist --no-progress
 
     - name: Install third-party Composer packages
-      if: ${{ steps.setup-php.outputs.php-version != '5.3' }}
-      run: composer require league/container:~2.4 nikic/fast-route phroute/phroute zendframework/zend-diactoros zendframework/zend-stratigility
+      run: composer require league/container nikic/fast-route phroute/phroute zendframework/zend-diactoros zendframework/zend-stratigility http-interop/http-middleware
 
     # - name: Install Composer packages for PHP 7.1
     #   if: ${{ steps.setup-php.outputs.php-version == '7.1' }}
diff --git a/composer.json b/composer.json
index 0a9dd615..f240e8e5 100644
--- a/composer.json
+++ b/composer.json
@@ -21,7 +21,7 @@
     },
     "require-dev":
     {
-        "phpunit/phpunit": "~4.2",
+        "phpunit/phpunit": "~4.2|~5.7",
         "scrutinizer/ocular": "~1.1"
     },
     "autoload":