diff --git a/.github/workflows/phpci.yaml b/.github/workflows/phpci.yaml
index a2ed485..5e39804 100644
--- a/.github/workflows/phpci.yaml
+++ b/.github/workflows/phpci.yaml
@@ -11,15 +11,13 @@ jobs:
     strategy:
       matrix:
         php-versions:
-          - '8.3'
           - '8.4'
-          - '8.5'
 
     steps:
     - uses: actions/checkout@v6
 
     - name: Set up PHP ${{ matrix.php-versions }}
-      uses: shivammathur/setup-php@v2
+      uses: shivammathur/setup-php@v2.37.0
       with:
         php-version: ${{ matrix.php-versions }}
 
diff --git a/composer.json b/composer.json
index 8affb6a..d49d68c 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
         }
     ],
     "require": {
-        "php": ">=8.3"
+        "php": ">=8.4"
     },
     "autoload": {
         "files": [
@@ -18,7 +18,7 @@
         ]
     },
     "require-dev": {
-        "phpunit/phpunit": "^12",
-        "squizlabs/php_codesniffer": "*"
+        "phpunit/phpunit": "^13",
+        "phpcsstandards/php_codesniffer": "^4.0"
     }
 }