diff --git a/composer.json b/composer.json
index 8a69a55..bc8ba23 100644
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,7 @@
     "ext-json": "*"
   },
   "require-dev": {
-    "php": "^7.2",
+    "php": "^8.0",
     "phpunit/phpunit": "^7.4"
   }
 }
diff --git a/config/docker/Dockerfile-php b/config/docker/Dockerfile-php
index 3c118f3..d569ef9 100644
--- a/config/docker/Dockerfile-php
+++ b/config/docker/Dockerfile-php
@@ -1,4 +1,4 @@
-FROM php:7.2-fpm
+FROM php:8.5-fpm
 
 RUN apt-get update \
     && apt-get upgrade -y
diff --git a/config/docker/Dockerfile-php-dev b/config/docker/Dockerfile-php-dev
index 175d9fe..3b7e327 100644
--- a/config/docker/Dockerfile-php-dev
+++ b/config/docker/Dockerfile-php-dev
@@ -1,4 +1,4 @@
-FROM php:7.2-fpm
+FROM php:8.5-fpm
 
 RUN apt-get update \
     && apt-get upgrade -y \