diff --git a/plugins/templates/matrix.yml b/plugins/templates/matrix.yml
index 3783ee9c545007ca0217958e36aad5db3c511ca2..de4757addc7f6dff363302cc6ad35a158c74f384 100644
--- a/plugins/templates/matrix.yml
+++ b/plugins/templates/matrix.yml
@@ -3,6 +3,8 @@ PHPunit:PHP7.0:MySQL:
   image: containers.ethitter.com:443/docker/images/php:7.0
   services:
     - mysql:5.6
+  variables:
+    WP_VERSION: 6.5.5
   script:
     - find . -type "f" -iname "*.php" | xargs -L "1" php -l
     - phpunit
@@ -12,6 +14,8 @@ PHPunit:PHP7.1:MySQL:
   image: containers.ethitter.com:443/docker/images/php:7.1
   services:
     - mysql:5.6
+  variables:
+    WP_VERSION: 6.5.5
   script:
     - find . -type "f" -iname "*.php" | xargs -L "1" php -l
     - phpunit