diff --git a/pyproject.toml b/pyproject.toml
index 69016bf..8233a6e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -34,7 +34,7 @@ dependencies = [
     # green on agentforge-py 0.3.1; Tool/BudgetPolicy/MCPServer surfaces unchanged).
     "agentforge-py>=0.3,<0.4",            # core contracts + Agent runtime + CLI
     "agentforge-anthropic[anthropic]>=0.3,<0.4",  # LLM provider for enrichment (feat-010, feat-012)
-    "agentforge-mcp[mcp]>=0.3,<0.4",      # MCP serving layer + mcp SDK (feat-008)
+    "agentforge-mcp[mcp]>=0.3,<0.5",      # MCP serving layer + mcp SDK (feat-008)
     "python-dotenv>=1.0",
     "pyyaml>=6",                           # read ckg.yaml engine config (feat-003+)
     # --- deterministic graph engine (feat-002/003/007) ---