diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8ff2d2e..3bc5983 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-versions: ['7.2', '7.3', '7.4', '8.0', '8.1']
+        php-versions: ['7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3']
         coverage: ['xdebug']
         code-analysis: ['no']
         include:
diff --git a/composer.json b/composer.json
index 353646a..0412b4d 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
     "require-dev" : {
         "friendsofphp/php-cs-fixer": "~2.17.1",
         "phpstan/phpstan": "^0.12",
-        "phpunit/phpunit" : "^7.5 || ^8.5 || ^9.0"
+        "phpunit/phpunit" : "^7.5 || ^8.5 || ^9.6"
     },
     "suggest" : {
         "ext-curl" : " to make http requests with the Client class"