diff --git a/strongswan/Dockerfile b/strongswan/Dockerfile
index 3b355fc..f9ae02e 100644
--- a/strongswan/Dockerfile
+++ b/strongswan/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.io/library/ubuntu:16.04
+FROM docker.io/library/ubuntu:24.04
 ARG STRONGSWAN_VERSION=5.8.4
 
 RUN \