diff --git a/Dockerfile b/Dockerfile
index ce392d6..6fd59bb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # Copyright 2026ff novatechflow (Alexander Alten)
 # SPDX-License-Identifier: PolyForm-Shield-1.0.0
-FROM golang:1.27-alpine AS build
+FROM golang:1.27.3-alpine AS build
 WORKDIR /src
 COPY go.mod ./
 COPY *.go ./
diff --git a/go.mod b/go.mod
index 9561824..ffd422b 100644
--- a/go.mod
+++ b/go.mod
@@ -3,3 +3,5 @@
 module polydisplay
 
 go 1.26
+
+toolchain go1.26.10