diff --git a/docker-compose.yml b/docker-compose.yml
index c81fccc3f..27727b51a 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,5 +1,6 @@
 services:
   php:
+    platform: linux/amd64
     build:
       context: .
       dockerfile: ./docker/php/Dockerfile
@@ -15,7 +16,7 @@ services:
       - db
 
   db:
-    image: mariadb
+    image: mariadb:10.11
     environment:
       - MYSQL_ROOT_PASSWORD=junghan5
       - MYSQL_DATABASE=thetool
@@ -44,6 +45,7 @@ services:
       - db
 
   db-downloader:
+    platform: linux/amd64
     build:
       context: ./docker/db-downloader
       dockerfile: Dockerfile
diff --git a/docker/php/Dockerfile b/docker/php/Dockerfile
index 5d0fe7974..b4585890f 100644
--- a/docker/php/Dockerfile
+++ b/docker/php/Dockerfile
@@ -1,7 +1,7 @@
-# Use Debian 13 “Trixie” as base image
-FROM debian:trixie
+# Use Debian 12 “Bookworm” as base image
+FROM debian:bookworm
 
-# Install ALL native packages from Debian 13 first
+# Install ALL native packages from Debian 12 first
 RUN apt update && \
     apt install -y \
     # wkhtmltopdf prerequisites
@@ -9,7 +9,7 @@ RUN apt update && \
     \
     # Apache + PHP + Utils
     poppler-utils apache2 curl cron unzip \
-    php8.4 php8.4-curl php8.4-cli php8.4-mysqli php8.4-gd php8.4-zip php8.4-dom php8.4-mbstring && \
+    php8.2 php8.2-curl php8.2-cli php8.2-mysqli php8.2-gd php8.2-zip php8.2-dom php8.2-mbstring && \
     \
     # Install Composer
     curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer && \
@@ -30,7 +30,7 @@ RUN wget https://github.com/wkhtmltopdf/packaging/releases/download/0.12.6-1/wkh
     dpkg --force-all -i wkhtmltox_0.12.6-1.stretch_amd64.deb
 
 # Enable PHP in Apache2 and enable rewrite
-RUN a2enmod php8.4 \
+RUN a2enmod php8.2 \
     && a2enmod rewrite
 
 # Set working directory and copy composer.json, then run composer install