diff --git a/.github/workflows/code-style.yml b/.github/workflows/code-style.yml
index 46b606b..adff027 100644
--- a/.github/workflows/code-style.yml
+++ b/.github/workflows/code-style.yml
@@ -15,10 +15,10 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v6
 
-      - name: Setup PHP 8.3
+      - name: Setup PHP 8.5.3
         uses: shivammathur/setup-php@v2
         with:
-          php-version: 8.3
+          php-version: 8.5.3
 
       - name: Install Composer Dependencies
         run: composer install -q --no-ansi --no-interaction --no-scripts --no-progress --prefer-dist
diff --git a/.github/workflows/phpstan.yml b/.github/workflows/phpstan.yml
index 4b8a564..93c8696 100644
--- a/.github/workflows/phpstan.yml
+++ b/.github/workflows/phpstan.yml
@@ -15,10 +15,10 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v6
 
-      - name: Setup PHP 8.3
+      - name: Setup PHP 8.5.3
         uses: shivammathur/setup-php@v2
         with:
-          php-version: 8.3
+          php-version: 8.5.3
 
       - name: Install Composer dependencies
         run: composer install -q --no-ansi --no-interaction --no-scripts --no-progress --prefer-dist
diff --git a/Dockerfile b/Dockerfile
index a6a447b..1402dd3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM php:8.4.14-alpine
+FROM php:8.5.3-alpine
 
 ENV COMPOSER_HOME="/tmp/composer"