diff --git a/services/runtime/Dockerfile b/services/runtime/Dockerfile
index c38217e..6b3d3ff 100644
--- a/services/runtime/Dockerfile
+++ b/services/runtime/Dockerfile
@@ -4,7 +4,7 @@
 # Stage 1: download deps and build the static binary.
 # Stage 2: minimal distroless runtime.
 
-FROM golang:1.26-alpine AS build
+FROM golang:1.27-alpine AS build
 RUN apk add --no-cache git ca-certificates
 
 WORKDIR /src