diff --git a/requirements.txt b/requirements.txt
index 24f1890..22749e8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,5 +4,5 @@
 # this file makes pip backtrack to 0.1.0 rather than report a conflict, and the demo
 # then dies at startup instead of at install time. See PR body.
 cmcp-runtime>=0.5.0
-weight-custody-manifest>=0.28.0,<0.29.0
+weight-custody-manifest>=0.28.1,<0.29.0
 openai>=2.54.0