diff --git a/Dockerfile b/Dockerfile
index 3e8efa2..b90bbb5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.io/library/alpine:3.18.5 AS build
+FROM docker.io/library/alpine:3.21.0 AS build
 
 ARG YAMLLINT_VERSION=master