diff --git a/Dockerfile b/Dockerfile
index 253cca9..c6c203f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ghcr.io/containerbase/base:9.20.12@sha256:c2a0548b8f6a7fa82ca08586b7298fe05b8be5badcd94096cb2d4f88961c40e5
+FROM ghcr.io/containerbase/base:9.21.0@sha256:9d3b42635085228314be392094bdd1a18218036a61bea3a9c87002f48a2d6295
 
 ENTRYPOINT [ "dumb-init", "--", "builder.sh" ]