diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c114a58..e3637aa 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,6 +19,7 @@ jobs:
                     - "8.0"
                     - "8.1"
                     - "8.2"
+                    - "8.3"
                 dependencies:
                     - "highest"
                     - "lowest"
diff --git a/composer.json b/composer.json
index 8eb9b7e..e1e6650 100644
--- a/composer.json
+++ b/composer.json
@@ -36,7 +36,7 @@
         }
     ],
     "require": {
-        "php": "~7.4.0 || ~8.0.0 || ~8.1.0 || ~8.2.0",
+        "php": "~7.4.0 || ~8.0.0 || ~8.1.0 || ~8.2.0 || ~8.3.0",
         "laminas/laminas-mail": "^2.9",
         "laminas/laminas-http": "^2.8",
         "laminas/laminas-mime": "^2.8",