diff --git a/images/debian.yaml b/images/debian.yaml
index 0f0323f6..8b8c07a1 100644
--- a/images/debian.yaml
+++ b/images/debian.yaml
@@ -1275,8 +1275,7 @@ packages:
     - s390x
   - name: sources.list
     url: |-
-      deb http://ftp.ports.debian.org/debian-ports unstable main
-      deb http://ftp.ports.debian.org/debian-ports unreleased main
+      deb http://deb.debian.org/debian sid main
     architectures:
     - riscv64