diff --git a/Dockerfile b/Dockerfile
index 74d1382..377c9cf 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.24-alpine AS build
+FROM golang:1.25-alpine AS build
 WORKDIR /src
 ENV CGO_ENABLED=0
 RUN apk add --no-cache ca-certificates
diff --git a/go.mod b/go.mod
index 2743289..6753c1f 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,3 @@
 module git.send.nrw/sendnrw/go-ubuntu-mirror
 
-go 1.24.4
+go 1.25.3