diff --git a/Dockerfile.phptest b/Dockerfile.phptest
index 65da0d2..55bc2a6 100644
--- a/Dockerfile.phptest
+++ b/Dockerfile.phptest
@@ -1,7 +1,7 @@
 # NAME leenooks/php
-# VERSION 8.0-fpm-test
+# VERSION 8.1-fpm-test
 
-FROM registry.leenooks.net/leenooks/php:8.0-fpm-latest
+FROM registry.leenooks.net/leenooks/php:8.1-fpm-latest
 
 RUN pecl install xdebug \
 	&& docker-php-ext-enable xdebug