diff --git a/Dockerfile b/Dockerfile
index 0abe853..d377fed 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.20.3@sha256:1e42bbe2508154c9126d48c2b8a75420c3544343bf86fd041fb7527e017a4b4a
+FROM alpine:3.21.0@sha256:e323a465c03a31ad04374fc7239144d0fd4e2b92da6e3e0655580476d3a84621
 LABEL org.opencontainers.image.source="https://github.com/trexx/docker-nfs-server"
 
 # renovate: datasource=repology depName=alpine_3_20/nfs-utils versioning=loose