diff --git a/.github/workflows/build-images.yml b/.github/workflows/build-images.yml
index 3e7825f..15c4f82 100644
--- a/.github/workflows/build-images.yml
+++ b/.github/workflows/build-images.yml
@@ -24,7 +24,7 @@ jobs:
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
         with:
-          platforms: linux/arm/v6,linux/arm/v7,linux/arm64,linux/ppc64le
+          platforms: linux/arm/v6,linux/arm/v7,linux/arm64,linux/ppc64le,linux/s390x
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
         with:
diff --git a/Dockerfile b/Dockerfile
index 1ff50f3..d43a4c0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM alpine:3.19.0
 
-ARG ALPINE_PACKAGES="php82-iconv php82-pdo_mysql php82-pdo_pgsql php82-openssl php82-simplexml"
+ARG ALPINE_PACKAGES="php83-iconv php83-pdo_mysql php83-pdo_pgsql php83-openssl php83-simplexml"
 ARG COMPOSER_PACKAGES="aws/aws-sdk-php google/cloud-storage"
 ARG PBURL=https://github.com/PrivateBin/PrivateBin/
 ARG RELEASE=1.6.1
@@ -24,23 +24,23 @@ RUN \
     ALPINE_PACKAGES="$(echo ${ALPINE_PACKAGES} | sed 's/,/ /g')" ;\
     ALPINE_COMPOSER_PACKAGES="" ;\
     if [ -n "${COMPOSER_PACKAGES}" ] ; then \
-        ALPINE_COMPOSER_PACKAGES="php82-phar" ;\
-        if [ -n "${ALPINE_PACKAGES##*php82-curl*}" ] ; then \
-            ALPINE_COMPOSER_PACKAGES="php82-curl ${ALPINE_COMPOSER_PACKAGES}" ;\
+        ALPINE_COMPOSER_PACKAGES="php83-phar" ;\
+        if [ -n "${ALPINE_PACKAGES##*php83-curl*}" ] ; then \
+            ALPINE_COMPOSER_PACKAGES="php83-curl ${ALPINE_COMPOSER_PACKAGES}" ;\
         fi ;\
-        if [ -n "${ALPINE_PACKAGES##*php82-mbstring*}" ] ; then \
-            ALPINE_COMPOSER_PACKAGES="php82-mbstring ${ALPINE_COMPOSER_PACKAGES}" ;\
+        if [ -n "${ALPINE_PACKAGES##*php83-mbstring*}" ] ; then \
+            ALPINE_COMPOSER_PACKAGES="php83-mbstring ${ALPINE_COMPOSER_PACKAGES}" ;\
         fi ;\
         RAWURL="$(echo ${PBURL} | sed s/github.com/raw.githubusercontent.com/)" ;\
     fi \
 # Install dependencies
     && apk upgrade --no-cache \
-    && apk add --no-cache gnupg git nginx php82 php82-fpm php82-gd php82-opcache \
+    && apk add --no-cache gnupg git nginx php83 php83-fpm php83-gd php83-opcache \
         s6 tzdata ${ALPINE_PACKAGES} ${ALPINE_COMPOSER_PACKAGES} \
 # Stabilize php config location
-    && mv /etc/php82 /etc/php \
-    && ln -s /etc/php /etc/php82 \
-    && ln -s $(which php82) /usr/local/bin/php \
+    && mv /etc/php83 /etc/php \
+    && ln -s /etc/php /etc/php83 \
+    && ln -s $(which php83) /usr/local/bin/php \
 # Remove (some of the) default nginx & php config
     && rm -f /etc/nginx.conf /etc/nginx/http.d/default.conf /etc/php/php-fpm.d/www.conf \
     && rm -rf /etc/nginx/sites-* \
@@ -81,10 +81,10 @@ RUN \
     && mkdir -p /srv/data \
     && sed -i "s#define('PATH', '');#define('PATH', '/srv/');#" index.php \
 # Support running s6 under a non-root user
-    && mkdir -p /etc/s6/services/nginx/supervise /etc/s6/services/php-fpm82/supervise \
+    && mkdir -p /etc/s6/services/nginx/supervise /etc/s6/services/php-fpm83/supervise \
     && mkfifo \
         /etc/s6/services/nginx/supervise/control \
-        /etc/s6/services/php-fpm82/supervise/control \
+        /etc/s6/services/php-fpm83/supervise/control \
     && chown -R ${UID}:${GID} /etc/s6 /run /srv/* /var/lib/nginx /var/www \
     && chmod o+rwx /run /var/lib/nginx /var/lib/nginx/tmp \
 # Clean up
diff --git a/buildx.sh b/buildx.sh
index b215d8c..3aeff1a 100755
--- a/buildx.sh
+++ b/buildx.sh
@@ -22,7 +22,7 @@ build_image() {
 push_image() {
     # shellcheck disable=SC2068
     docker buildx build \
-        --platform linux/amd64,linux/386,linux/arm/v6,linux/arm/v7,linux/arm64,linux/ppc64le \
+        --platform linux/amd64,linux/386,linux/arm/v6,linux/arm/v7,linux/arm64,linux/ppc64le,linux/s390x \
         --pull \
         --no-cache \
         --push \
@@ -52,13 +52,13 @@ main() {
             BUILD_ARGS="--build-arg ALPINE_PACKAGES= --build-arg COMPOSER_PACKAGES="
             ;;
         gcs)
-            BUILD_ARGS="--build-arg ALPINE_PACKAGES=php82-openssl --build-arg COMPOSER_PACKAGES=google/cloud-storage"
+            BUILD_ARGS="--build-arg ALPINE_PACKAGES=php83-openssl --build-arg COMPOSER_PACKAGES=google/cloud-storage"
             ;;
         pdo)
-            BUILD_ARGS="--build-arg ALPINE_PACKAGES=php82-pdo_mysql,php82-pdo_pgsql --build-arg COMPOSER_PACKAGES="
+            BUILD_ARGS="--build-arg ALPINE_PACKAGES=php83-pdo_mysql,php83-pdo_pgsql --build-arg COMPOSER_PACKAGES="
             ;;
         s3)
-            BUILD_ARGS="--build-arg ALPINE_PACKAGES=php82-curl,php82-mbstring,php82-openssl,php82-simplexml --build-arg COMPOSER_PACKAGES=aws/aws-sdk-php"
+            BUILD_ARGS="--build-arg ALPINE_PACKAGES=php83-curl,php83-mbstring,php83-openssl,php83-simplexml --build-arg COMPOSER_PACKAGES=aws/aws-sdk-php"
             ;;
         *)
             BUILD_ARGS=""
diff --git a/etc/php/conf.d/00-docker.ini b/etc/php/conf.d/00-docker.ini
index dc0c7c7..224753a 100644
--- a/etc/php/conf.d/00-docker.ini
+++ b/etc/php/conf.d/00-docker.ini
@@ -4,9 +4,6 @@
 ; fixation via session adoption with strict mode. Defaults to 0 (disabled).
 session.use_strict_mode=On
 
-; Enable assert() evaluation.
-assert.active=Off
-
 ; This determines whether errors should be printed to the screen as part of the output or if they
 ; should be hidden from the user. Value "stderr" sends the errors to stderr instead of stdout.
 display_errors=Off
diff --git a/etc/s6/services/php-fpm82/run b/etc/s6/services/php-fpm83/run
similarity index 50%
rename from etc/s6/services/php-fpm82/run
rename to etc/s6/services/php-fpm83/run
index a98710c..54f77bf 100755
--- a/etc/s6/services/php-fpm82/run
+++ b/etc/s6/services/php-fpm83/run
@@ -1,2 +1,2 @@
 #!/bin/execlineb -P
-/usr/sbin/php-fpm82
+/usr/sbin/php-fpm83