diff --git a/pyproject.toml b/pyproject.toml
index 732d384..d81d9a0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -63,6 +63,7 @@ dependencies = [
     "networkx>=3.0",
     "tomli>=2.0.0; python_version < '3.11'",  # TOML parser for version reading
     "schedule>=1.2.0",  # Required for sync monitoring
+    "PyYAML>=6.0",  # Required for workflow preset management
 ]
 
 [project.optional-dependencies]
diff --git a/requirements.txt b/requirements.txt
index efccc1e..7fe8dd6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,6 +17,7 @@ jsonschema==4.25.1
 jsonschema-specifications==2025.9.1
 mcp>=1.25,<2
 packaging==25.0
+PyYAML>=6.0
 pluggy==1.6.0
 pydantic==2.12.3
 pydantic-settings==2.11.0