diff --git a/CRM/Contribute/BAO/ContributionRecur.php b/CRM/Contribute/BAO/ContributionRecur.php
index 53db698c9641..2ec25b984aa7 100644
--- a/CRM/Contribute/BAO/ContributionRecur.php
+++ b/CRM/Contribute/BAO/ContributionRecur.php
@@ -241,10 +241,11 @@ public static function getPaymentProcessorObject($id) {
    *   pseudo processor used for pay-later.
    */
   public static function getPaymentProcessorID($recurID) {
-    $recur = civicrm_api3('ContributionRecur', 'getsingle', [
-      'id' => $recurID,
-      'return' => ['payment_processor_id'],
-    ]);
+    $recur = \Civi\Api4\ContributionRecur::get(FALSE)
+      ->addSelect('payment_processor_id')
+      ->addWhere('id', '=', $recurID)
+      ->execute()
+      ->first();
     return (int) ($recur['payment_processor_id'] ?? 0);
   }
 
@@ -896,7 +897,9 @@ public static function updateOnNewPayment($recurringContributionID, string $paym
         $updatedRecurParams['next_sched_contribution_date'] = date('Y-m-d', strtotime('+' . $existingRecur['frequency_interval'] . ' ' . $existingRecur['frequency_unit'], strtotime($effectiveDate)));
       }
     }
-    civicrm_api3('ContributionRecur', 'create', $updatedRecurParams);
+    \Civi\Api4\ContributionRecur::save(FALSE)
+      ->setRecords([$updatedRecurParams])
+      ->execute();
   }
 
   /**