diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 75dc6b9a4..0b406ec16 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -19,6 +19,8 @@ jobs:
         include:
           - php: 7.2
             composer-flags: "--prefer-lowest"
+          - php: '8.3'
+            composer-flags: "--ignore-platform-req=php+" # TODO move that to a normal job without flag once phpspec supports it
 
     steps:
       -   uses: actions/checkout@v3
diff --git a/composer.json b/composer.json
index 4fa59f837..1f4bff1a7 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
     ],
 
     "require": {
-        "php":                               "^7.2 || 8.0.* || 8.1.* || 8.2.*",
+        "php":                               "^7.2 || 8.0.* || 8.1.* || 8.2.* || 8.3.*",
         "phpdocumentor/reflection-docblock": "^5.2",
         "sebastian/comparator":              "^3.0 || ^4.0 || ^5.0",
         "doctrine/instantiator":             "^1.2 || ^2.0",