diff --git a/Dockerfile b/Dockerfile
index 6c316fd..4f1f400 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,7 +6,7 @@
 # by a CI job. Dependabot's `docker` ecosystem proposes the digest bumps, so
 # patching stays routine rather than becoming manual.
 # ── Stage 1 — UI build ────────────────────────────────────────────────────────
-FROM node:20-alpine@sha256:fb4cd12c85ee03686f6af5362a0b0d56d50c58a04632e6c0fb8363f609372293 AS ui-builder
+FROM node:26-alpine@sha256:0b36e8c136b94cd4fcf02188228e76c31ad5872eef3fec8cbd2eee500cfd9e80 AS ui-builder
 
 WORKDIR /ui