diff --git a/appveyor.yml b/appveyor.yml
index 1bd513c..77c0329 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -11,6 +11,7 @@ environment:
   matrix:
     - PHP_VERSION: '7.2.19'
     - PHP_VERSION: '7.3.7'
+    - PHP_VERSION: '7.4.3'
 
 matrix:
   fast_finish: true
@@ -33,8 +34,8 @@ install:
   - IF NOT EXIST php-installed.txt echo extension=php_openssl.dll >> php.ini
   - IF NOT EXIST php-installed.txt echo extension=php_mbstring.dll >> php.ini
   - IF NOT EXIST php-installed.txt echo extension=php_gd2.dll >> php.ini
-  - IF NOT EXIST php-installed.txt appveyor DownloadFile https://getcomposer.org/composer.phar
-  - IF NOT EXIST php-installed.txt echo @php %%~dp0composer.phar %%* > composer.bat
+  - IF NOT EXIST php-installed.txt appveyor DownloadFile https://getcomposer.org/composer-stable.phar
+  - IF NOT EXIST php-installed.txt echo @php %%~dp0composer-stable.phar %%* > composer.bat
   - IF NOT EXIST php-installed.txt type nul >> php-installed.txt
   - cd c:\php-blurhash