diff --git a/appveyor.yml b/appveyor.yml
index cc1de26c5f..bd35af195d 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -18,8 +18,8 @@ install:
     - mkdir c:\php && cd c:\php
     - appveyor DownloadFile https://raw.githubusercontent.com/symfony/binary-utils/master/cacert.pem
     - appveyor DownloadFile https://github.com/symfony/binary-utils/releases/download/v0.1/php-5.5.9-nts-Win32-VC11-x86.zip
-    - 7z x php-5.5.9-nts-Win32-VC11-x86.zip -y >nul
     - appveyor DownloadFile https://github.com/symfony/binary-utils/releases/download/v0.1/php-7.1.3-Win32-VC14-x86.zip
+    - 7z x php-7.1.3-Win32-VC14-x86.zip -y >nul
     - cd ext
     - appveyor DownloadFile https://github.com/symfony/binary-utils/releases/download/v0.1/php_apcu-4.0.10-5.5-nts-vc11-x86.zip
     - 7z x php_apcu-4.0.10-5.5-nts-vc11-x86.zip -y >nul
@@ -45,19 +45,21 @@ install:
     - echo extension=php_pdo_sqlite.dll >> php.ini-max
     - echo extension=php_curl.dll >> php.ini-max
     - echo curl.cainfo=c:\php\cacert.pem >> php.ini-max
-    - copy /Y php.ini-max php.ini
+    - copy /Y php.ini-min php.ini
+    - echo extension=php_openssl.dll >> php.ini
     - cd c:\projects\symfony
     - IF NOT EXIST composer.phar (appveyor DownloadFile https://getcomposer.org/download/1.3.0/composer.phar)
     - php composer.phar self-update
     - copy /Y .composer\* %APPDATA%\Composer\
     - php .github/build-packages.php "HEAD^" src\Symfony\Bridge\PhpUnit
     - IF %APPVEYOR_REPO_BRANCH%==master (SET COMPOSER_ROOT_VERSION=dev-master) ELSE (SET COMPOSER_ROOT_VERSION=%APPVEYOR_REPO_BRANCH%.x-dev)
-    - php -dmemory_limit=-1 composer.phar update --no-progress --no-suggest --ansi
+    - php composer.phar config platform.php 5.5.9
+    - php composer.phar update --no-progress --no-suggest --ansi
     - php phpunit install
 
 test_script:
     - SET X=0
-    - cd c:\php && 7z x php-7.1.3-Win32-VC14-x86.zip -y >nul && copy /Y php.ini-min php.ini
+    - cd c:\php && copy /Y php.ini-min php.ini
     - cd c:\projects\symfony
     - php phpunit src\Symfony --exclude-group benchmark,intl-data || SET X=!errorlevel!
     - cd c:\php && 7z x php-5.5.9-nts-Win32-VC11-x86.zip -y >nul && copy /Y php.ini-min php.ini