diff --git a/src/applications/repository/worker/PhabricatorRepositoryCommitHeraldWorker.php b/src/applications/repository/worker/PhabricatorRepositoryCommitHeraldWorker.php
--- a/src/applications/repository/worker/PhabricatorRepositoryCommitHeraldWorker.php
+++ b/src/applications/repository/worker/PhabricatorRepositoryCommitHeraldWorker.php
@@ -3,13 +3,12 @@
 final class PhabricatorRepositoryCommitHeraldWorker
   extends PhabricatorRepositoryCommitParserWorker {
 
-
   public function getRequiredLeaseTime() {
     // Herald rules may take a long time to process.
     return phutil_units('4 hours in seconds');
   }
 
-  public function parseCommit(
+  protected function parseCommit(
     PhabricatorRepository $repository,
     PhabricatorRepositoryCommit $commit) {
 
diff --git a/src/applications/repository/worker/commitmessageparser/PhabricatorRepositoryGitCommitMessageParserWorker.php b/src/applications/repository/worker/commitmessageparser/PhabricatorRepositoryGitCommitMessageParserWorker.php
--- a/src/applications/repository/worker/commitmessageparser/PhabricatorRepositoryGitCommitMessageParserWorker.php
+++ b/src/applications/repository/worker/commitmessageparser/PhabricatorRepositoryGitCommitMessageParserWorker.php
@@ -3,7 +3,7 @@
 final class PhabricatorRepositoryGitCommitMessageParserWorker
   extends PhabricatorRepositoryCommitMessageParserWorker {
 
-  public function parseCommit(
+  protected function parseCommit(
     PhabricatorRepository $repository,
     PhabricatorRepositoryCommit $commit) {
 
diff --git a/src/applications/repository/worker/commitmessageparser/PhabricatorRepositoryMercurialCommitMessageParserWorker.php b/src/applications/repository/worker/commitmessageparser/PhabricatorRepositoryMercurialCommitMessageParserWorker.php
--- a/src/applications/repository/worker/commitmessageparser/PhabricatorRepositoryMercurialCommitMessageParserWorker.php
+++ b/src/applications/repository/worker/commitmessageparser/PhabricatorRepositoryMercurialCommitMessageParserWorker.php
@@ -3,7 +3,7 @@
 final class PhabricatorRepositoryMercurialCommitMessageParserWorker
   extends PhabricatorRepositoryCommitMessageParserWorker {
 
-  public function parseCommit(
+  protected function parseCommit(
     PhabricatorRepository $repository,
     PhabricatorRepositoryCommit $commit) {
 
diff --git a/src/applications/repository/worker/commitmessageparser/PhabricatorRepositorySvnCommitMessageParserWorker.php b/src/applications/repository/worker/commitmessageparser/PhabricatorRepositorySvnCommitMessageParserWorker.php
--- a/src/applications/repository/worker/commitmessageparser/PhabricatorRepositorySvnCommitMessageParserWorker.php
+++ b/src/applications/repository/worker/commitmessageparser/PhabricatorRepositorySvnCommitMessageParserWorker.php
@@ -3,7 +3,7 @@
 final class PhabricatorRepositorySvnCommitMessageParserWorker
   extends PhabricatorRepositoryCommitMessageParserWorker {
 
-  public function parseCommit(
+  protected function parseCommit(
     PhabricatorRepository $repository,
     PhabricatorRepositoryCommit $commit) {