diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c2faab6..81b1c98 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,13 +15,13 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "8.3"
           - "8.4"
+          - "8.5"
         dependencies:
           - "highest"
         include:
           - dependencies: "lowest"
-            php-version: "8.3"
+            php-version: "8.4"
 
     steps:
       - name: "Checkout"
diff --git a/.github/workflows/coding-standards.yml b/.github/workflows/coding-standards.yml
index fc26214..e00e374 100644
--- a/.github/workflows/coding-standards.yml
+++ b/.github/workflows/coding-standards.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "8.3"
+          - "8.4"
 
     steps:
       - name: "Checkout"
diff --git a/.github/workflows/infection.yaml b/.github/workflows/infection.yaml
index 43a66c2..c8873a9 100644
--- a/.github/workflows/infection.yaml
+++ b/.github/workflows/infection.yaml
@@ -19,7 +19,7 @@ jobs:
       - name: "Install PHP"
         uses: "shivammathur/setup-php@v2"
         with:
-          php-version: "8.3"
+          php-version: "8.4"
           coverage: "pcov"
 
       - name: "Install dependencies with Composer"
diff --git a/.github/workflows/static-analysis.yml b/.github/workflows/static-analysis.yml
index 8b3f754..9ef70bc 100644
--- a/.github/workflows/static-analysis.yml
+++ b/.github/workflows/static-analysis.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "8.3"
+          - "8.4"
 
     steps:
       - name: "Checkout code"
diff --git a/composer.json b/composer.json
index 4ee96cb..98fb2db 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
         }
     },
     "require": {
-        "php": "^8.3",
+        "php": "^8.4",
         "webonyx/graphql-php": "^15.4"
     },
     "require-dev": {