diff --git a/README.md b/README.md
index d3d54e4..a8ebaf5 100644
--- a/README.md
+++ b/README.md
@@ -46,7 +46,7 @@ go build -o cloudsql-exporter .
 Example multi-stage Dockerfile that builds from source:
 
 ```dockerfile
-FROM golang:bullseye AS builder
+FROM golang:bookworm AS builder
 WORKDIR /build
 ENV CGO_ENABLED=0
 RUN git clone --branch <tag> --single-branch https://github.com/flashadmin/cloudsql-exporter.git \