diff --git a/Dockerfile.withoutPlayground b/Dockerfile.withoutPlayground
index 80a8241..855e4bd 100644
--- a/Dockerfile.withoutPlayground
+++ b/Dockerfile.withoutPlayground
@@ -1,4 +1,4 @@
-FROM golang as build-service
+FROM golang:bullseye as build-service
 WORKDIR /build
 COPY . .
 RUN go build -o pdf-turtle