diff --git a/.github/workflows/basic-validator.yaml b/.github/workflows/basic-validator.yaml
index 88b4d60..a9dab90 100644
--- a/.github/workflows/basic-validator.yaml
+++ b/.github/workflows/basic-validator.yaml
@@ -47,7 +47,7 @@ jobs:
       - uses: actions/setup-python@42375524e23c412d93fb67b49958b491fce71c38 # v5.4.0
         with:
           python-version: ${{ env.PYTHON_VERSION }}
-      - uses: snok/install-poetry@76e04a911780d5b312d89783f7b1cd627778900a # v1.4.1
+      - uses: snok/install-poetry@a783c322200f0519c7926aa6faa857c4e23e9263 # v1.4.2
         with:
           virtualenvs-in-project: true
           version: ${{ env.POETRY_VERSION }}
diff --git a/asfyaml/feature/project.py b/asfyaml/feature/project.py
index c1a02c9..0852ad3 100644
--- a/asfyaml/feature/project.py
+++ b/asfyaml/feature/project.py
@@ -141,6 +141,7 @@
         strictyaml.Optional("source_artifact_paths"): strictyaml.Seq(strictyaml.Str()),
         strictyaml.Optional("source_excludes_lightweight"): strictyaml.Seq(strictyaml.Str()),
         strictyaml.Optional("source_excludes_rat"): strictyaml.Seq(strictyaml.Str()),
+        strictyaml.Optional("rat_excludes_url"): strictyaml.Str(),
         strictyaml.Optional("start_vote_subject"): strictyaml.Str(),
         strictyaml.Optional("start_vote_template"): strictyaml.Str(),
         strictyaml.Optional("finish_vote_template"): strictyaml.Str(),
diff --git a/tests/project_metadata.py b/tests/project_metadata.py
index 21a69e8..eacb5de 100644
--- a/tests/project_metadata.py
+++ b/tests/project_metadata.py
@@ -208,6 +208,7 @@
         github_vote_workflow_path:
             - .github/workflows/vote.yml
         license_check_mode: RAT
+        rat_excludes_url: https://raw.githubusercontent.com/apache/example/main/.rat-excludes
         vote_recipients:
             to: private@tooling.apache.org
         min_hours: 72