diff --git a/src/applications/harbormaster/engine/HarbormasterBuildEngine.php b/src/applications/harbormaster/engine/HarbormasterBuildEngine.php
--- a/src/applications/harbormaster/engine/HarbormasterBuildEngine.php
+++ b/src/applications/harbormaster/engine/HarbormasterBuildEngine.php
@@ -437,7 +437,7 @@
    * the overall state of the associated buildable. Compute the new aggregate
    * state and save it on the buildable.
    *
-   * @param   HarbormasterBuild $buildable The buildable to update.
+   * @param   HarbormasterBuildable $buildable The buildable to update.
    * @return  void
    */
    public function updateBuildable(HarbormasterBuildable $buildable) {
diff --git a/src/infrastructure/customfield/field/PhabricatorCustomField.php b/src/infrastructure/customfield/field/PhabricatorCustomField.php
--- a/src/infrastructure/customfield/field/PhabricatorCustomField.php
+++ b/src/infrastructure/customfield/field/PhabricatorCustomField.php
@@ -1004,7 +1004,8 @@
    * when a transaction would set a field to an invalid value, or when a field
    * is required but no transactions provide value.
    *
-   * @param PhabricatorLiskDAO $editor Editor applying the transactions.
+   * @param PhabricatorApplicationTransactionEditor $editor Editor applying the
+   *   transactions.
    * @param string $type Transaction type. This type is always
    *   `PhabricatorTransactions::TYPE_CUSTOMFIELD`, it is provided for
    *   convenience when constructing exceptions.
diff --git a/src/infrastructure/markup/PhabricatorMarkupInterface.php b/src/infrastructure/markup/PhabricatorMarkupInterface.php
--- a/src/infrastructure/markup/PhabricatorMarkupInterface.php
+++ b/src/infrastructure/markup/PhabricatorMarkupInterface.php
@@ -62,7 +62,7 @@
    *
    * @param string $field Field name.
    * @param string $output The finalized output of the engine.
-   * @param string $engine The engine which generated the output.
+   * @param PhutilMarkupEngine $engine The engine which generated the output.
    * @return string Final output.
    * @task markup
    */