diff --git a/tests/Model/CodecCursorFunctionalTest.php b/tests/Model/CodecCursorFunctionalTest.php
index 432d71732..48fd2cb59 100644
--- a/tests/Model/CodecCursorFunctionalTest.php
+++ b/tests/Model/CodecCursorFunctionalTest.php
@@ -55,12 +55,15 @@ function (...$args) use (&$previousErrorHandler, &$deprecations) {
                 E_USER_DEPRECATED | E_DEPRECATED,
             );
 
-            $cursorId = $codecCursor->getId();
+            $cursorId = $codecCursor->getId(true);
         } finally {
             restore_error_handler();
         }
 
-        self::assertInstanceOf(CursorId::class, $cursorId);
+        self::logicalOr(
+            self::isInstanceOf(Int64::class),
+            self::isInstanceOf(CursorId::class),
+        )->matches($cursorId);
 
         // Expect 2 deprecations: 1 from CodecCursor, one from Cursor
         self::assertCount(2, $deprecations);
diff --git a/tests/Operation/WatchFunctionalTest.php b/tests/Operation/WatchFunctionalTest.php
index 58b8c844c..deb9d976d 100644
--- a/tests/Operation/WatchFunctionalTest.php
+++ b/tests/Operation/WatchFunctionalTest.php
@@ -720,7 +720,7 @@ public function testInitialCursorIsNotClosed(): void
          * reports the cursor as alive. While the cursor ID is accessed through
          * ChangeStream, we'll need to use reflection to access the internal
          * Cursor and call isDead(). */
-        $this->assertNotEquals('0', (string) $changeStream->getCursorId());
+        $this->assertNotEquals('0', (string) $changeStream->getCursorId(true));
 
         $rc = new ReflectionClass(ChangeStream::class);
         $rp = $rc->getProperty('iterator');
@@ -1370,11 +1370,11 @@ public function testOriginalReadPreferenceIsPreservedOnResume(): void
         }
 
         $changeStream = $operation->execute($secondary);
-        $previousCursorId = $changeStream->getCursorId();
+        $previousCursorId = $changeStream->getCursorId(true);
         $this->forceChangeStreamResume();
 
         $changeStream->next();
-        $this->assertNotSame($previousCursorId, $changeStream->getCursorId());
+        $this->assertNotSame($previousCursorId, $changeStream->getCursorId(true));
 
         $getCursor = Closure::bind(
             fn () => $this->iterator->getInnerIterator(),