diff --git a/schemes/main/manifest.json b/schemes/main/manifest.json
index 7c05adc..fd65ec8 100644
--- a/schemes/main/manifest.json
+++ b/schemes/main/manifest.json
@@ -1,5 +1,5 @@
 {
-  "base-tag": "swift-DEVELOPMENT-SNAPSHOT-2025-08-26-a",
+  "base-tag": "swift-DEVELOPMENT-SNAPSHOT-2025-08-27-a",
   "icu4c": [],
   "libxml2": [],
   "swift-org-download-channel": "development"