diff --git a/CHANGELOG.md b/CHANGELOG.md
index cd0ff40..6d36daf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -27,7 +27,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - **BREAKING**: **Workflows**: Reject `placement_rounds`, `acceptance_rule`, `seeds_per_alpha`, `baseline`, `step_type`, `matrix_name`.
 - **BREAKING**: **Traffic**: `traffic.flow_policy_config` requires preset names; replace integer values.
 - **BREAKING**: **TM Sizing**: Reject unsupported demand endpoints instead of silently omitting their traffic.
-- **Dependencies**: Require `ngraph>=0.23.1` and `netgraph-core>=0.10.0`.
+- **Dependencies**: Require `ngraph>=0.24.0` and `netgraph-core>=0.10.0`.
 - **Workflows**: Validate `lib/workflows.yml` with NetGraph before emission; steps use `type` and `demand_set`.
 - **Workflows**: Use `parallelism: auto` in built-in and sample workflows.
 - **Validation**: Construct the full NetGraph scenario to check workflow arguments and failure policies before topology audits.
diff --git a/README.md b/README.md
index a34d8c9..f4851bd 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ scenarios with site blueprints, hardware, risk groups, traffic, and workflows.
 
 ## Install
 
-Requires Python 3.11+. Dependencies include `ngraph>=0.23.1` and
+Requires Python 3.11+. Dependencies include `ngraph>=0.24.0` and
 `netgraph-core>=0.10.0`. TopoGen is not on PyPI; the `topogen` package there is
 an unrelated project.
 
diff --git a/pyproject.toml b/pyproject.toml
index 3321a51..b0681ff 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -37,7 +37,7 @@ dependencies = [
     # Strict schema validation at runtime
     "jsonschema",
     # NetGraph ecosystem
-    "ngraph>=0.23.1",
+    "ngraph>=0.24.0",
     "netgraph-core>=0.10.0",
 ]