diff --git a/webapp/php/Dockerfile b/webapp/php/Dockerfile
index 7d288c16..e89207d5 100644
--- a/webapp/php/Dockerfile
+++ b/webapp/php/Dockerfile
@@ -1,5 +1,5 @@
 # syntax=docker/dockerfile:1
-FROM php:8.3-fpm-bookworm
+FROM php:8.4-fpm
 
 RUN \
   --mount=type=cache,target=/var/lib/apt,sharing=locked \