diff --git a/Dockerfile b/Dockerfile
index 5841092..c9a09e0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -13,7 +13,7 @@ RUN pnpm -C web install --prefer-offline --frozen-lockfile \
   && rm -rf web/node_modules
 
 # Go build: pure Go (modernc sqlite), static binary, no cgo.
-FROM docker.io/library/golang:1.27-alpine@sha256:b8c9b82affbbb82a020bbcf998dad2ba9516944ac7e883524642a481a9505e9c AS build
+FROM docker.io/library/golang:1.27-alpine@sha256:d200d2dd76b03a99b52651fd1325aff7dcd35422c35c01bac56571b0507f3deb AS build
 ENV GOTOOLCHAIN=local GOFLAGS=-buildvcs=false CGO_ENABLED=0
 WORKDIR /src
 COPY go.mod go.sum ./