diff --git a/src/applications/drydock/worker/DrydockLeaseUpdateWorker.php b/src/applications/drydock/worker/DrydockLeaseUpdateWorker.php
--- a/src/applications/drydock/worker/DrydockLeaseUpdateWorker.php
+++ b/src/applications/drydock/worker/DrydockLeaseUpdateWorker.php
@@ -169,7 +169,7 @@
    * acquire the lease.
    *
    * @param DrydockLease $lease Requested lease.
-   * @return void
+   * @return DrydockResource
    * @task allocator
    */
   private function executeAllocator(DrydockLease $lease) {
diff --git a/src/applications/metamta/storage/PhabricatorMetaMTAMail.php b/src/applications/metamta/storage/PhabricatorMetaMTAMail.php
--- a/src/applications/metamta/storage/PhabricatorMetaMTAMail.php
+++ b/src/applications/metamta/storage/PhabricatorMetaMTAMail.php
@@ -531,8 +531,6 @@
 
   /**
    * Attempt to deliver an email immediately, in this process.
-   *
-   * @return void
    */
   public function sendNow() {
     if ($this->getStatus() != PhabricatorMailOutboundStatus::STATUS_QUEUE) {
diff --git a/src/applications/people/phid/PhabricatorPeopleUserEmailPHIDType.php b/src/applications/people/phid/PhabricatorPeopleUserEmailPHIDType.php
--- a/src/applications/people/phid/PhabricatorPeopleUserEmailPHIDType.php
+++ b/src/applications/people/phid/PhabricatorPeopleUserEmailPHIDType.php
@@ -35,7 +35,7 @@
       $handle->setName($email->getAddress());
     }
 
-    return null;
+    return;
   }
 
 }
diff --git a/src/applications/search/query/PhabricatorSearchDocumentQuery.php b/src/applications/search/query/PhabricatorSearchDocumentQuery.php
--- a/src/applications/search/query/PhabricatorSearchDocumentQuery.php
+++ b/src/applications/search/query/PhabricatorSearchDocumentQuery.php
@@ -105,7 +105,7 @@
   protected function nextPage(array $page) {
     // We already updated the internal offset in `loadPage()` after loading
     // results, so we do not need to make any additional state updates here.
-    return $this;
+    return;
   }
 
 }
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
@@ -794,7 +794,6 @@
    *   query.
    * @param PhabricatorCursorPagedPolicyAwareQuery $query Query to constrain.
    * @param wild $value Constraint provided by the user.
-   * @return void
    * @task appsearch
    */
   public function applyApplicationSearchConstraintToQuery(
@@ -818,7 +817,6 @@
    *   form.
    * @param AphrontFormView $form The form to update.
    * @param wild $value Value from the saved query.
-   * @return void
    * @task appsearch
    */
   public function appendToApplicationSearchForm(
diff --git a/src/infrastructure/customfield/field/PhabricatorCustomFieldList.php b/src/infrastructure/customfield/field/PhabricatorCustomFieldList.php
--- a/src/infrastructure/customfield/field/PhabricatorCustomFieldList.php
+++ b/src/infrastructure/customfield/field/PhabricatorCustomFieldList.php
@@ -48,7 +48,7 @@
    *
    * @param PhabricatorCustomFieldInterface $object Object to read field values
    *   for.
-   * @return void
+   * @return $this
    */
   public function readFieldsFromStorage(
     PhabricatorCustomFieldInterface $object) {
diff --git a/src/infrastructure/daemon/workers/query/PhabricatorWorkerTriggerQuery.php b/src/infrastructure/daemon/workers/query/PhabricatorWorkerTriggerQuery.php
--- a/src/infrastructure/daemon/workers/query/PhabricatorWorkerTriggerQuery.php
+++ b/src/infrastructure/daemon/workers/query/PhabricatorWorkerTriggerQuery.php
@@ -74,7 +74,7 @@
     // (Before T13266, we raised an exception here, but since "nextPage()" is
     // now called even if we don't page we can't do that anymore. Just do
     // nothing instead.)
-    return null;
+    return;
   }
 
   protected function loadPage() {
diff --git a/src/infrastructure/daemon/workers/storage/PhabricatorWorkerTrigger.php b/src/infrastructure/daemon/workers/storage/PhabricatorWorkerTrigger.php
--- a/src/infrastructure/daemon/workers/storage/PhabricatorWorkerTrigger.php
+++ b/src/infrastructure/daemon/workers/storage/PhabricatorWorkerTrigger.php
@@ -86,7 +86,6 @@
    *   is the first execution.
    * @param int $this_event Scheduled epoch of this execution. This may not be
    *   the same as the current time.
-   * @return void
    */
   public function executeTrigger($last_event, $this_event) {
     return $this->getAction()->execute($last_event, $this_event);