diff --git a/Dockerfile b/Dockerfile
index 0ad49e18..fec4ca36 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,7 +6,7 @@
 # native Go arch inside the builder image.
 
 # --- Builder ---------------------------------------------------------------
-FROM --platform=$BUILDPLATFORM golang:1.26-bookworm AS builder
+FROM --platform=$BUILDPLATFORM golang:1.27-bookworm AS builder
 
 # DuckDB ships glibc static libraries. Build against bookworm to keep the
 # libc requirement below the trixie runtime, using native cross compilers.
diff --git a/Dockerfile.updater b/Dockerfile.updater
index 43f3d976..eb80d25c 100644
--- a/Dockerfile.updater
+++ b/Dockerfile.updater
@@ -8,7 +8,7 @@
 # toolchain runs natively and only `go build` is cross-compiled.
 
 # --- Builder ---------------------------------------------------------------
-FROM --platform=$BUILDPLATFORM golang:1.26-alpine AS builder
+FROM --platform=$BUILDPLATFORM golang:1.27-alpine AS builder
 
 RUN apk add --no-cache git