diff --git a/Dockerfile b/Dockerfile
index ad72fcc..cc67497 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.io/library/node:26.11.1-alpine AS build
+FROM docker.io/library/node:26.12.0-alpine AS build
 
 ARG MARKDOWNLINT_VERSION=master