diff --git a/src/applications/repository/worker/PhabricatorRepositoryCommitHeraldWorker.php b/src/applications/repository/worker/PhabricatorRepositoryCommitHeraldWorker.php
index 1a6f611745..b1178df5d6 100644
--- a/src/applications/repository/worker/PhabricatorRepositoryCommitHeraldWorker.php
+++ b/src/applications/repository/worker/PhabricatorRepositoryCommitHeraldWorker.php
@@ -3,6 +3,11 @@
 final class PhabricatorRepositoryCommitHeraldWorker
   extends PhabricatorRepositoryCommitParserWorker {
 
+  public function getRequiredLeaseTime() {
+    // Herald rules may take a long time to process.
+    return 4 * 60 * 60;
+  }
+
   public function parseCommit(
     PhabricatorRepository $repository,
     PhabricatorRepositoryCommit $commit) {