diff --git a/backend/Dockerfile b/backend/Dockerfile
index b7088905..ed754c65 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -1,5 +1,5 @@
 # backend/Dockerfile — Multi-stage (distroless runtime)
-FROM node:22-bookworm-slim@sha256:53ada149d435c38b14476cb57e4a7da73c15595aba79bd6971b547ceb6d018bf AS builder
+FROM node:25-bookworm-slim@sha256:81db02c4b671288a03915da9534dbd54f96d0e7c24d80ccc54f5b36b2e684370 AS builder
 WORKDIR /app
 RUN apt-get update \
   && apt-get install -y --no-install-recommends ca-certificates g++ make openssl python3 \