diff --git a/Dockerfile b/Dockerfile
index 45f2207..9f472df 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,7 +8,7 @@ COPY web .
 RUN npm run build
 
 # backend build
-FROM golang:1.24-alpine@sha256:8bee1901f1e530bfb4a7850aa7a479d17ae3a18beb6e09064ed54cfd245b7191 AS builder
+FROM golang:1.26-alpine@sha256:2389ebfa5b7f43eeafbd6be0c3700cc46690ef842ad962f6c5bd6be49ed82039 AS builder
 
 ENV CGO_ENABLED=0 GOOS=linux GO111MODULE=on