diff --git a/docker/Dockerfile b/docker/Dockerfile
index 6c3306634d..148879f366 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -59,16 +59,19 @@ RUN --mount=type=cache,target=/root/.cache/pip \
 
 # #### Build the Web UI ------------------------------------
 
-FROM node:18 AS web-builder
+FROM node:18-slim AS web-builder
+ENV PNPM_HOME="/pnpm"
+ENV PATH="$PNPM_HOME:$PATH"
+RUN corepack enable
+
 WORKDIR /build
-RUN npm i -g pnpm
 COPY invokeai/frontend/web/ ./
-RUN --mount=type=cache,target=/usr/lib/node_modules \
-    pnpm i --include dev
+RUN --mount=type=cache,target=/pnpm/store \
+    pnpm install --frozen-lockfile
+RUN pnpm run build
 RUN --mount=type=cache,target=/usr/lib/node_modules \
     yarn vite build
 
-
 #### Runtime stage ---------------------------------------
 
 FROM library/ubuntu:23.04 AS runtime