diff --git a/compose.yaml b/compose.yaml
index 85962e71..384bad4c 100755
--- a/compose.yaml
+++ b/compose.yaml
@@ -74,7 +74,7 @@ services:
       - "./containers/conf/angie:/etc/angie:rw"
       - "./containers/data/certs:/etc/angie/ssl:ro"
       - "./containers/data/angie/logs:/var/log/angie:rw"
-      - "./:/var/www/wordpress:ro"
+      - "./:/var/www/wordpress:rw"
   traefik:
     container_name: "haikuatelier.fr-traefik"
     env_file:
@@ -118,7 +118,7 @@ services:
         - "CMD-SHELL"
         - "valkey-cli ping | grep PONG"
       timeout: "5s"
-    image: "docker.io/valkey/valkey:8-alpine"
+    image: "docker.io/valkey/valkey:9-alpine"
     restart: "unless-stopped"
     sysctls:
       - "net.core.somaxconn=512"
diff --git a/containers/Dockerfile b/containers/Dockerfile
index 94c70f3e..9ce1b86a 100644
--- a/containers/Dockerfile
+++ b/containers/Dockerfile
@@ -10,7 +10,7 @@ RUN set -eux && apk add --no-cache \
 # Récupère les fichiers du site pour la branche « Production ».
 RUN git clone --branch production --depth 1 http://git.gcch.fr/gcch/haiku-atelier-2024.git "/tmp/repo"
 
-FROM docker.io/library/wordpress:php8.4-fpm-alpine AS php
+FROM docker.io/library/wordpress:php8.5-fpm-alpine AS php
 ENTRYPOINT []
 
 LABEL org.opencontainers.image.title=wordpress-haiku-atelier \
diff --git a/containers/conf/angie/haikuatelier.conf b/containers/conf/angie/haikuatelier.conf
index cb1bd818..eacd5c44 100755
--- a/containers/conf/angie/haikuatelier.conf
+++ b/containers/conf/angie/haikuatelier.conf
@@ -11,6 +11,11 @@ server {
     # Remove X-Powered-By, which is an information leak
     fastcgi_hide_header X-Powered-By;
 
+    # Pour éviter des erreurs liés à des requêtes trop lourdes.
+    fastcgi_buffers 16 32k;
+    fastcgi_buffer_size 64k;
+    fastcgi_busy_buffers_size 64k;
+
     # Point d'accès pour vérifier la santé du conteneur Angie.
     location = /health {
         access_log off;