diff --git a/README.md b/README.md
index a91b5d07..8728fc10 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,7 @@ gantt
     beta     :128b, 2024-03-01, 2024-04-30
     release  :after 128b, 2024-08-31
     section 1.29
-    beta     :129b, 2024-06-01, 2024-06-30
+    beta     :129b, 2024-07-01, 2024-08-30
     release  :after 129b, 2024-11-30
 ```