diff --git a/build/Dockerfile b/build/Dockerfile
index 346dc04..855e0ef 100644
--- a/build/Dockerfile
+++ b/build/Dockerfile
@@ -7,12 +7,17 @@ WORKDIR /
 RUN apk add --no-cache git \
     && git clone --depth 1 --branch $TRANQUIL_PDS_BRANCH $TRANQUIL_PDS_REPO /src
 
-FROM node:26-slim AS frontend
-RUN corepack enable && corepack prepare pnpm@latest --activate
+FROM node:26-alpine AS frontend
+
+# Install pnpm globally to avoid needing to install it in each build step
+# since corepack is no longer bundled with Node.js since v25+.
+RUN npm install -g pnpm@latest
+
 WORKDIR /app
 COPY --from=starting-point /src/frontend/ ./
 RUN pnpm install --frozen-lockfile && pnpm build
 
+# TODO: Switch to Alpine Linux-based builder image
 FROM rust:1.96-slim-trixie AS builder
 RUN apt-get update && apt-get install -y --no-install-recommends \
         ca-certificates pkg-config libssl-dev mold clang protobuf-compiler curl xz-utils \