diff --git a/__tests__/helpers/github-workflow-schema.json b/__tests__/helpers/github-workflow-schema.json
index 32b4cd24..bfc1e66a 100644
--- a/__tests__/helpers/github-workflow-schema.json
+++ b/__tests__/helpers/github-workflow-schema.json
@@ -104,6 +104,7 @@
       "additionalProperties": false,
       "properties": {
         "actions": { "$ref": "#/definitions/permissions-level" },
+        "attestations": { "$ref": "#/definitions/permissions-level" },
         "checks": { "$ref": "#/definitions/permissions-level" },
         "contents": { "$ref": "#/definitions/permissions-level" },
         "deployments": { "$ref": "#/definitions/permissions-level" },