diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index dee18e9..e37e51c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -11,7 +11,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-versions: ['8.3', '8.4']
+        php-versions: ['8.4', '8.5']
         dependency-versions: ['lowest', 'highest']
     runs-on: ubuntu-latest
     steps:
diff --git a/composer.json b/composer.json
index efa744c..51e52f9 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,7 @@
         "assoconnect/php-quality-config": "^2.2"
     },
     "require": {
-        "php": "^8.3",
+        "php": "^8.4",
         "ext-intl": "*",
         "thecodingmachine/safe": "^3.0"
     },