diff --git a/latest.json b/latest.json
index e61a0accd58f3..eedadcb87ea62 100644
--- a/latest.json
+++ b/latest.json
@@ -1,4 +1,4 @@
 {
   "stable": "9.5.2",
-  "testing": "9.5.2"
+  "testing": "10.0.0-preview"
 }