diff --git a/claude-code/requirements.txt b/claude-code/requirements.txt
index 55d7c3e..5c7de2f 100644
--- a/claude-code/requirements.txt
+++ b/claude-code/requirements.txt
@@ -5,5 +5,5 @@
 # --sign): the Agent Manifest and the TRACE Trust Record. Verified against the
 # PyPI releases below in a clean virtualenv.
 agent-manifest>=0.3
-agentrust-trace>=0.3
+agentrust-trace>=0.4.0
 agentrust-trace-tests>=0.2
diff --git a/scheduled-agents/requirements.txt b/scheduled-agents/requirements.txt
index d8161ff..7a320e7 100644
--- a/scheduled-agents/requirements.txt
+++ b/scheduled-agents/requirements.txt
@@ -3,5 +3,5 @@
 #
 # Required only to sign a TRACE record (/schedule-trace, /schedule-manifest
 # approve --sign). Verified against the PyPI releases below in a clean virtualenv.
-agentrust-trace>=0.3
+agentrust-trace>=0.4.0
 agentrust-trace-tests>=0.2