diff --git a/Dockerfile b/Dockerfile
index bf4b220c..aaa66175 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 # renovate: datasource=node-version depName=node versioning=node
 ARG NODE_VERSION=22.20.0
 
-FROM ghcr.io/containerbase/base:13.20.6@sha256:24c64e916085b6670848013059abe8290cce6c99f26aa2eca036492a6a2abe02
+FROM ghcr.io/containerbase/base:13.21.0@sha256:b0c48e6d3690a48fc33fed6129fd0b9c7899793b035d47de57e6a479379cf655
 
 ARG NODE_VERSION
 RUN install-tool node