diff --git a/hack/validate/yamllint.yaml b/hack/validate/yamllint.yaml
index e1f8c6b024..93a2b3b787 100644
--- a/hack/validate/yamllint.yaml
+++ b/hack/validate/yamllint.yaml
@@ -3,3 +3,8 @@ locale: C.UTF-8
 rules:
   document-start: disable
   line-length: disable
+  # ignore "warning  truthy value should be one of [false, true]" on GitHub
+  # actions workflows, which use "on:" to specify when to run.
+  truthy:
+    ignore: |
+      .github/workflows/