diff --git a/claude-code/requirements.txt b/claude-code/requirements.txt
index 021e601..297a721 100644
--- a/claude-code/requirements.txt
+++ b/claude-code/requirements.txt
@@ -10,5 +10,5 @@ agentrust-capture-core>=0.1,<0.2
 # --sign): the Agent Manifest and the TRACE Trust Record. Verified against the
 # PyPI releases below in a clean virtualenv.
 agent-manifest>=0.10.0
-agentrust-trace>=0.5.1
+agentrust-trace>=0.9.0
 agentrust-trace-tests>=0.4.1,<0.5
diff --git a/scheduled-agents/requirements.txt b/scheduled-agents/requirements.txt
index 43bae24..5d02610 100644
--- a/scheduled-agents/requirements.txt
+++ b/scheduled-agents/requirements.txt
@@ -8,5 +8,5 @@ agentrust-capture-core>=0.1,<0.2
 #
 # 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>=0.5.1
+agentrust-trace>=0.9.0
 agentrust-trace-tests>=0.4.1,<0.5