diff --git a/Dockerfile b/Dockerfile
index 73a48b2..865a198 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,7 +9,7 @@ COPY web/app/ ./
 RUN npm run build
 
 # Stage 2: Back-end Build (Go)
-FROM golang:1.24-alpine AS builder
+FROM golang:1.26-alpine AS builder
 WORKDIR /app
 COPY go.mod go.sum ./
 RUN --mount=type=cache,target=/go/pkg/mod go mod download