diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9ef4d90..0513e41 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,9 +23,10 @@ jobs:
           - '8.0'
           - '8.1'
           - '8.2'
+          - '8.3'
         future-release: [false]
         include:
-          - php-version: '8.3'
+          - php-version: '8.4'
             future-release: true
       fail-fast: false
     name: PHP ${{ matrix.php-version }}
diff --git a/README.md b/README.md
index 5685aa4..74dd7be 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,7 @@ Installation instructions to use the `composer` command can be found on https://
 
 ### Requirements
 
-PHP Curl Class works with PHP 8.2, 8.1, 8.0, 7.4, 7.3, 7.2, 7.1, and 7.0.
+PHP Curl Class works with PHP 8.3, 8.2, 8.1, 8.0, 7.4, 7.3, 7.2, 7.1, and 7.0.
 
 ### Quick Start and Examples