diff --git a/.github/workflows/woo.yml b/.github/workflows/woo.yml
index 9885f51..6972dc8 100644
--- a/.github/workflows/woo.yml
+++ b/.github/workflows/woo.yml
@@ -26,30 +26,38 @@ jobs:
             wp: '5.3'
             wc: '5.4.3'
             coverage: 1
+            phpunit: 'phpunit:6.4.3'
           - php-version: '7.0'
             wp: '5.3'
             wc: '6.4.0'
+            phpunit: 'phpunit:6.4.3'
           - php-version: '7.4'
             wp: '5.3'
             wc: '5.4.3'
+            phpunit: 'phpunit:8.2.3'
           - php-version: '7.4'
             wp: '5.3'
             wc: '6.4.0'
+            phpunit: 'phpunit:8.2.3'
 
           # WordPress 6.0
           # PHP 7.0 and 7.4
           - php-version: '7.0'
             wp: '6.0'
             wc: '5.4.3'
+            phpunit: 'phpunit:6.4.3'
           - php-version: '7.0'
             wp: '6.0'
             wc: '6.4.0'
+            phpunit: 'phpunit:6.4.3'
           - php-version: '7.4'
             wp: '6.0'
             wc: '5.4.3'
+            phpunit: 'phpunit:8.2.3'
           - php-version: '7.4'
             wp: '6.0'
             wc: '6.4.0'
+            phpunit: 'phpunit:8.2.3'
     services:
       mysql:
         image: mysql:5.7
@@ -66,7 +74,7 @@ jobs:
         uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php-version }}
-          tools: composer:2.1.14, phpunit:6.5.14
+          tools: composer:2.1.14, ${{ matrix.phpunit }}
           extensions: gd, mbstring, mysqli, zip, unzip, mcrypt, mysql, pdo_mysql, dom
           coverage: xdebug