diff --git a/Dockerfile b/Dockerfile
index 615488541..98461dd28 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,7 +5,7 @@
 # Must override builder-base, not builder, since the latter is referred to later in the file and so must not be
 # directly replaced. See here, and note that "stage" parameter mentioned there has been renamed to
 # "build-context": https://github.com/docker/buildx/pull/904#issuecomment-1005871838
-FROM golang:1.26.7-bookworm AS builder-base
+FROM golang:1.27.0-bookworm AS builder-base
 FROM --platform=$BUILDPLATFORM builder-base AS builder
 
 ARG TARGETARCH
diff --git a/Dockerfile.windows b/Dockerfile.windows
index 14268edc6..ddbd3c3ce 100644
--- a/Dockerfile.windows
+++ b/Dockerfile.windows
@@ -5,7 +5,7 @@
 # Must override builder-base, not builder, since the latter is referred to later in the file and so must not be
 # directly replaced. See here, and note that "stage" parameter mentioned there has been renamed to
 # "build-context": https://github.com/docker/buildx/pull/904#issuecomment-1005871838
-FROM --platform=linux/$BUILDARCH golang:1.26.7-bookworm AS builder-base
+FROM --platform=linux/$BUILDARCH golang:1.27.0-bookworm AS builder-base
 FROM --platform=linux/$BUILDARCH builder-base AS builder
 
 ARG TARGETARCH