diff --git a/Dockerfile b/Dockerfile
index 06f5835..195d6a3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,8 +18,19 @@ ENV NEXT_TELEMETRY_DISABLED=1
 ENV NODE_ENV=production \
     PORT=3000 \
     HOSTNAME="0.0.0.0"
-RUN addgroup --system --gid 1001 nodejs && \
-    adduser --system --uid 1001 nextjs
+
+# Ensure adduser/addgroup (or useradd/groupadd) is available, then create the group and user
+RUN if command -v apt-get >/dev/null 2>&1; then \
+      apt-get update && apt-get install -y --no-install-recommends adduser && rm -rf /var/lib/apt/lists/*; \
+    elif command -v apk >/dev/null 2>&1; then \
+      apk add --no-cache shadow && rm -rf /var/cache/apk/*; \
+    fi && \
+    if command -v addgroup >/dev/null 2>&1 && command -v adduser >/dev/null 2>&1; then \
+      addgroup --system --gid 1001 nodejs && adduser --system --uid 1001 --ingroup nodejs --disabled-password --home /nonexistent --shell /sbin/nologin nextjs; \
+    else \
+      groupadd -g 1001 nodejs || true && useradd -u 1001 -g nodejs -M -s /sbin/nologin nextjs || true; \
+    fi
+
 COPY --from=builder /app/public ./public
 COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
 COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static