diff --git a/images/iptables/Dockerfile b/images/iptables/Dockerfile
index f7df35a69..05ae084f3 100644
--- a/images/iptables/Dockerfile
+++ b/images/iptables/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:mantic
+FROM ubuntu:24.04
 
 # The iptables package installs both iptables-legacy and iptables-nft, with
 # iptables symlinked to the latter.