diff --git a/Dockerfile b/Dockerfile
index 8448781..85f04ce 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -42,25 +42,31 @@ RUN npm cache clean --force && \
 ####################
 # Production stage #
 ####################
-FROM node:22-alpine AS production
+FROM ubuntu:22.04 AS production
 
 ENV APP_UID=1001
 ENV APP_GID=1001
 
-RUN addgroup -g ${APP_GID} -S app && \
-    adduser -S app -u ${APP_UID} -G app
-
-RUN apk add --no-cache --virtual .runtime-deps \
-    sqlite \
-    openssl \
+# Install Node.js 22 and runtime dependencies
+RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
     curl \
-    procps-ng \
+    ca-certificates \
+    sqlite3 \
+    openssl \
+    procps \
     dumb-init \
     bash \
-    su-exec && \
-    rm -rf /var/cache/apk/* /tmp/* && \
+    gosu && \
+    curl -fsSL https://deb.nodesource.com/setup_22.x | bash - && \
+    apt-get install -y nodejs && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* && \
     rm -rf /usr/share/man /usr/share/doc /usr/share/info
 
+# Create app user and group
+RUN groupadd -g ${APP_GID} app && \
+    useradd -m -u ${APP_UID} -g app app
+
 # Set working directory
 WORKDIR /app
 
@@ -82,10 +88,8 @@ COPY --from=builder --chown=app:app /app/package.json /app/
 RUN mkdir -p /app/backend/db /app/backend/certs /app/backend/uploads
 
 # Cleanup
-RUN apk del --no-cache .runtime-deps sqlite openssl curl && \
-    apk add --no-cache sqlite-libs openssl curl dumb-init su-exec && \
-    rm -rf /usr/local/lib/node_modules/npm/docs /usr/local/lib/node_modules/npm/man && \
-    rm -rf /root/.npm /tmp/* /var/tmp/* /var/cache/apk/*
+RUN rm -rf /usr/local/lib/node_modules/npm/docs /usr/local/lib/node_modules/npm/man && \
+    rm -rf /root/.npm /tmp/* /var/tmp/*
 
 VOLUME ["/app/backend/db"]
 VOLUME ["/app/backend/uploads"]
diff --git a/scripts/docker-entrypoint.sh b/scripts/docker-entrypoint.sh
index 27e7722..cc090c4 100644
--- a/scripts/docker-entrypoint.sh
+++ b/scripts/docker-entrypoint.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 set -eu
 
 # Runtime UID/GID Configuration
@@ -32,15 +32,15 @@ set_db_file_permissions() {
 if [ "$CURRENT_UID" != "$PUID" ] || [ "$CURRENT_GID" != "$PGID" ]; then
     echo "Configuring user permissions..."
 
-    deluser app 2>/dev/null || true
-    delgroup app 2>/dev/null || true
+    userdel app 2>/dev/null || true
+    groupdel app 2>/dev/null || true
 
     if getent group "$PGID" >/dev/null 2>&1; then
         TARGET_GROUP=$(getent group "$PGID" | cut -d: -f1)
         echo "Using existing group '$TARGET_GROUP' with GUID $PGID"
     else
         # Create group "app" with our target group id
-        addgroup -g "$PGID" -S app
+        groupadd -g "$PGID" app
         TARGET_GROUP="app"
         echo "Created 'app' group with GID: $PGID"
     fi
@@ -50,7 +50,7 @@ if [ "$CURRENT_UID" != "$PUID" ] || [ "$CURRENT_GID" != "$PGID" ]; then
         echo "Using existing user '$TARGET_USER' with UID $PUID"
     else
         # Create user "app" with our target user id
-        adduser -S app -u "$PUID" -G "$TARGET_GROUP"
+        useradd -m -u "$PUID" -g "$TARGET_GROUP" app
         echo "Created 'app' user with UID: $PUID"
         TARGET_USER=app
     fi
@@ -69,4 +69,4 @@ set_db_file_permissions
 
 # Drop privileges and execute the original start script
 echo "Starting application as user $TARGET_USER"
-exec su-exec "$TARGET_USER" dumb-init -- /app/backend/cmd/start.sh
+exec gosu "$TARGET_USER" dumb-init -- /app/backend/cmd/start.sh