diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 96cd1ab..7e63677 100755
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        php: [8.4, 8.3, 8.2]
+        php: [8.5, 8.4, 8.3, 8.2]
         laravel: ['10.*', '11.*', '12.*']
         stability: [prefer-lowest, prefer-stable]
         include:
diff --git a/composer.json b/composer.json
index ed1841e..6b25a3e 100755
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,7 @@
         }
     ],
     "require": {
-        "php": "^8.2|^8.3|^8.4",
+        "php": "^8.2|^8.3|^8.4|^8.5",
         "xeroapi/xero-php-oauth2": "^7.1|^8.0",
         "laravel/framework": "^10.0|^11.0|^12.0"
     },