diff --git a/Dockerfile b/Dockerfile
index d8d43da..6abe41d 100755
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,10 +3,8 @@ FROM node:22-alpine AS base
 
 ENV TZ=Asia/Tehran
 
-# corepack ships with the official Node image; avoid the Runflare mirror here
-# (mirror often 500s on corepack). Project deps still use the mirror below.
-RUN corepack enable \
-    && corepack prepare pnpm@9.15.9 --activate
+# Runflare build hosts cannot reach registry.npmjs.org; use their npm mirror.
+RUN npm install -g pnpm@9.15.9 --registry=https://mirror-npm.runflare.com
 
 # Stage 2: Install all dependencies (including dev)
 FROM base AS deps