diff --git a/src/magento1/harness.yml b/src/magento1/harness.yml
index d07e279ce..bce6ed12b 100644
--- a/src/magento1/harness.yml
+++ b/src/magento1/harness.yml
@@ -38,7 +38,8 @@ attributes:
     pass: magento
     name: magento
   php:
-    version: 7.2
+    composer:
+      major_version: 2
     entrypoint:
       steps:
         - |
@@ -52,6 +53,7 @@ attributes:
     ini:
       opcache.max_accelerated_files: 32531
       opcache.memory_consumption: 320
+    version: 7.2
   magento:
     edition: enterprise
     version: 1.14.4.5