diff --git a/.circleci/config.yml b/.circleci/config.yml
index e9f7a99..27f9175 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -17,9 +17,18 @@ jobs:
       - run: composer install
       - run: ./vendor/bin/phpunit
 
+  "php-8.3":
+    docker:
+      - image: cimg/php:8.3
+    steps:
+      - checkout
+      - run: composer install
+      - run: ./vendor/bin/phpunit
+
 workflows:
     version: 2
     build:
         jobs:
             - "php-8.1"
             - "php-8.2"
+            - "php-8.3"
diff --git a/composer.json b/composer.json
index daecc3c..49bfd66 100644
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,7 @@
         }
     },
     "require": {
-        "php": "^8.1|8.2",
+        "php": "^8.1|8.2|8.3",
         "guzzlehttp/guzzle": "^7.5",
         "ext-json": "*"
     },