diff --git a/Dockerfile-ultra-lite b/Dockerfile-ultra-lite
index c1bdd80d..09e4a5a3 100644
--- a/Dockerfile-ultra-lite
+++ b/Dockerfile-ultra-lite
@@ -1,5 +1,5 @@
 # use alpine
-FROM alpine:3.20.3
+FROM alpine:3.21.0
 
 ARG VERSION_TAG