diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index d4435a8e0..3f1f037a4 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -18,6 +18,8 @@ jobs:
         # These can fail if "experimental" is true. Currently all must pass
         mariadb-version: ["10.3"]
         extension: ["pdo_mysql"]
+        php-version: []
+        composer-json: []
         experimental: [false]
         include:
           - php-version: 5.4