diff --git a/spread.yaml b/spread.yaml
index 4705b5ba..ecb97f6b 100644
--- a/spread.yaml
+++ b/spread.yaml
@@ -9,7 +9,7 @@ environment:
   # TODO: are these vars needed still?
   LANG: "C.UTF-8"
   LANGUAGE: "en"
-  UBUNTU_IMAGE_CHANNEL: "2/stable"
+  UBUNTU_IMAGE_CHANNEL: "latest/edge"
 
 backends:
   google-nested: