diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 603f65c..bf599a8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "8.3"
+          - "8.4"
 
     steps:
       - uses: "actions/checkout@v5"
@@ -40,11 +40,11 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "8.4"
+          - "8.5"
         code-coverage:
           - "none"
         include:
-          - php-version: "8.3"
+          - php-version: "8.4"
             code-coverage: "pcov"
 
     steps:
@@ -70,7 +70,7 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "8.3"
+          - "8.4"
 
     steps:
       - uses: "actions/checkout@v5"
@@ -89,7 +89,7 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "8.3"
+          - "8.4"
 
     steps:
       - uses: "actions/checkout@v5"
diff --git a/composer.json b/composer.json
index 62380fe..682c9f9 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
         }
     ],
     "require": {
-        "php": "~8.3.0 || ~8.4.0",
+        "php": "~8.4.0 || ~8.5.0",
         "ext-mbstring": "*",
         "ext-tokenizer": "*",
         "friendsofphp/php-cs-fixer": "^3.89.0"