diff --git a/frontend/Dockerfile b/frontend/Dockerfile
index 686bbc3..152db78 100644
--- a/frontend/Dockerfile
+++ b/frontend/Dockerfile
@@ -3,7 +3,7 @@
 # Base images pinned to explicit patch versions for reproducible builds.
 
 # --- Build stage ---
-FROM node:20.18.1-alpine AS build
+FROM node:26.4.0-alpine AS build
 
 WORKDIR /app