diff --git a/Dockerfile b/Dockerfile
index 3e42f48..df70ed5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM php:8.2-alpine as base
+FROM php:8.3-alpine as base
 
 ENV APPLICATION_MODE=prod
 WORKDIR /opt/chimera/sample
diff --git a/composer.json b/composer.json
index b09f963..0a24c52 100644
--- a/composer.json
+++ b/composer.json
@@ -8,7 +8,7 @@
     },
     "prefer-stable": true,
     "require": {
-        "php": "~8.1.0 || ~8.2.0",
+        "php": "~8.1.0 || ~8.2.0 || ~8.3.0",
         "ext-json": "*",
         "chimera/bus-tactician": "^1.0.x-dev",
         "chimera/di-symfony": "^1.0.x-dev",