diff --git a/appveyor.yml b/appveyor.yml
index 86a943c77c..0ec2c5a3a0 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -11,27 +11,27 @@ init:
     - SET COMPOSER_NO_INTERACTION=1
     - SET SYMFONY_DEPRECATIONS_HELPER=strict
     - SET ANSICON=121x90 (121x90)
-    - SET SYMFONY_PHPUNIT_SKIPPED_TESTS=phpunit.skipped
+    - SET SYMFONY_PHPUNIT_VERSION=4.8
     - REG ADD "HKEY_CURRENT_USER\Software\Microsoft\Command Processor" /v DelayedExpansion /t REG_DWORD /d 1 /f
 
 install:
     - mkdir c:\php && cd c:\php
     - appveyor DownloadFile https://raw.githubusercontent.com/symfony/binary-utils/master/cacert.pem
-    - appveyor DownloadFile http://windows.php.net/downloads/releases/archives/php-5.3.11-nts-Win32-VC9-x86.zip
+    - appveyor DownloadFile https://github.com/symfony/binary-utils/releases/download/v0.1/php-5.3.11-nts-Win32-VC9-x86.zip
     - 7z x php-5.3.11-nts-Win32-VC9-x86.zip -y >nul
     - appveyor DownloadFile https://raw.githubusercontent.com/symfony/binary-utils/master/ICU-51.2-dlls.zip
     - 7z x ICU-51.2-dlls.zip -y >nul
-    - del /Q *.zip
+    - appveyor DownloadFile https://github.com/symfony/binary-utils/releases/download/v0.1/php-7.1.3-Win32-VC14-x64.zip
     - cd ext
     - appveyor DownloadFile https://raw.githubusercontent.com/symfony/binary-utils/master/php_intl-3.0.0-5.3-nts-vc9-x86.zip
     - 7z x php_intl-3.0.0-5.3-nts-vc9-x86.zip -y >nul
-    - appveyor DownloadFile http://windows.php.net/downloads/pecl/releases/apcu/4.0.10/php_apcu-4.0.10-5.3-nts-vc9-x86.zip
+    - appveyor DownloadFile https://github.com/symfony/binary-utils/releases/download/v0.1/php_apcu-4.0.10-5.3-nts-vc9-x86.zip
     - 7z x php_apcu-4.0.10-5.3-nts-vc9-x86.zip -y >nul
-    - appveyor DownloadFile http://windows.php.net/downloads/pecl/releases/memcache/3.0.8/php_memcache-3.0.8-5.3-nts-vc9-x86.zip
+    - appveyor DownloadFile https://github.com/symfony/binary-utils/releases/download/v0.1/php_memcache-3.0.8-5.3-nts-vc9-x86.zip
     - 7z x php_memcache-3.0.8-5.3-nts-vc9-x86.zip -y >nul
-    - del /Q *.zip
     - cd ..
     - copy /Y php.ini-development php.ini-min
+    - echo serialize_precision=14 >> php.ini-min
     - echo max_execution_time=1200 >> php.ini-min
     - echo date.timezone="America/Los_Angeles" >> php.ini-min
     - echo extension_dir=ext >> php.ini-min
@@ -58,8 +58,12 @@ install:
 
 test_script:
     - cd c:\projects\symfony
-    - SET X=0
-    - copy /Y c:\php\php.ini-min c:\php\php.ini
+    - cd c:\php && 7z x php-7.1.3-Win32-VC14-x64.zip -y >nul && 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-5.3.11-nts-Win32-VC9-x86.zip -y >nul && copy /Y php.ini-min php.ini
+    - cd c:\projects\symfony
+    - SET SYMFONY_PHPUNIT_SKIPPED_TESTS=phpunit.skipped
     - php phpunit src\Symfony --exclude-group benchmark,intl-data || SET X=!errorlevel!
     - copy /Y c:\php\php.ini-max c:\php\php.ini
     - php phpunit src\Symfony --exclude-group benchmark,intl-data || SET X=!errorlevel!