diff --git a/system/CLI/BaseCommand.php b/system/CLI/BaseCommand.php
index afeb80eb5267..6d4f24f08696 100644
--- a/system/CLI/BaseCommand.php
+++ b/system/CLI/BaseCommand.php
@@ -102,6 +102,8 @@ public function __construct(LoggerInterface $logger, Commands $commands)
      * @param array<int|string, string|null> $params
      *
      * @return int|void
+     *
+     * @deprecated 4.6.1 Using `void` as a return value is deprecated. Use `int` to return the exit code.
      */
     abstract public function run(array $params);
 
@@ -113,6 +115,8 @@ abstract public function run(array $params);
      * @return int|void
      *
      * @throws ReflectionException
+     *
+     * @deprecated 4.6.1 Using `void` as a return value is deprecated. Use `int` to return the exit code.
      */
     protected function call(string $command, array $params = [])
     {
diff --git a/system/CLI/Console.php b/system/CLI/Console.php
index 325eaa7b455c..ca9d02f9fe23 100644
--- a/system/CLI/Console.php
+++ b/system/CLI/Console.php
@@ -31,6 +31,8 @@ class Console
      * @return int|void Exit code
      *
      * @throws Exception
+     *
+     * @deprecated 4.6.1 Using `void` as a return value is deprecated. Use `int` to return the exit code.
      */
     public function run()
     {