diff --git a/services/mana-auth/Dockerfile b/services/mana-auth/Dockerfile
index 6390702b4..a3c656c3b 100644
--- a/services/mana-auth/Dockerfile
+++ b/services/mana-auth/Dockerfile
@@ -1,6 +1,6 @@
 # Install stage: use node + pnpm to resolve workspace dependencies.
 # Build context must be the monorepo root (see docker-compose.macmini.yml).
-FROM node:22-alpine AS installer
+FROM node:26-alpine AS installer
 
 RUN corepack enable && corepack prepare pnpm@9.15.0 --activate