diff --git a/Dockerfile b/Dockerfile
index 4754aea..f0d8522 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -28,7 +28,8 @@ WORKDIR /app
 COPY --from=deps /app/node_modules ./node_modules
 COPY . .
 
-RUN \
+RUN --mount=type=secret,id=.env \
+  set -a; . /run/secrets/.env; set +a; \
   if [ -f yarn.lock ]; then yarn run build; \
   elif [ -f package-lock.json ]; then npm run build; \
   elif [ -f pnpm-lock.yaml ]; then corepack enable pnpm && pnpm run build; \