diff --git a/versionToServerVersionMapping.json b/versionToServerVersionMapping.json
index d1f9d9b1..20d78ca3 100644
--- a/versionToServerVersionMapping.json
+++ b/versionToServerVersionMapping.json
@@ -1,7 +1,7 @@
 [
   {
     "uiVersion": "PREVIEW",
-    "serverVersion": "r1856"
+    "serverVersion": "r1901"
   },
   {
     "tag": "v20250801.01",