diff --git a/iron/Dockerfile b/iron/Dockerfile
index 6c2bae8..5c78f29 100644
--- a/iron/Dockerfile
+++ b/iron/Dockerfile
@@ -16,7 +16,7 @@
 # This Dockerfile is based on https://github.com/AtsushiSaito/docker-ubuntu-sweb
 # which is released under the Apache-2.0 license.
 
-FROM ubuntu:jammy-20240416
+FROM ubuntu:jammy-20240530
 
 ARG TARGETPLATFORM
 LABEL maintainer="Tiryoh<tiryoh@gmail.com>"