diff --git a/README.md b/README.md
index c9a8682a..5163c231 100644
--- a/README.md
+++ b/README.md
@@ -65,7 +65,7 @@ http://localhost
 ### app container
 
 - Base image
-  - [php](https://hub.docker.com/_/php):8.2-fpm-bullseye
+  - [php](https://hub.docker.com/_/php):8.3-fpm-bullseye
   - [composer](https://hub.docker.com/_/composer):2.6
 
 ### web container
diff --git a/infra/docker/php/Dockerfile b/infra/docker/php/Dockerfile
index 2dd6d4ab..3fee8baf 100644
--- a/infra/docker/php/Dockerfile
+++ b/infra/docker/php/Dockerfile
@@ -1,4 +1,4 @@
-FROM php:8.2-fpm-bullseye AS base
+FROM php:8.3-fpm-bullseye AS base
 
 WORKDIR /workspace