diff --git a/Dockerfile.standalone b/Dockerfile.standalone
index 27e1744..3349d22 100644
--- a/Dockerfile.standalone
+++ b/Dockerfile.standalone
@@ -10,6 +10,7 @@ RUN pnpm build
 FROM golang:1.24-alpine AS backend-builder
 WORKDIR /app
 RUN apk add --no-cache git
+ENV GOTOOLCHAIN=auto
 COPY go.mod go.sum ./
 RUN go mod download
 COPY . .