diff --git a/docker/coredns/Dockerfile b/docker/coredns/Dockerfile
index 428003f..3532cfc 100644
--- a/docker/coredns/Dockerfile
+++ b/docker/coredns/Dockerfile
@@ -1,5 +1,5 @@
 # Stage 1: build CoreDNS with minimal plugin set
-FROM golang:1.26-alpine AS build
+FROM golang:1.27-alpine AS build
 
 RUN apk add --no-cache git make bash