diff --git a/src/Task/Runner.php b/src/Task/Runner.php
index <HASH>..<HASH> 100644
--- a/src/Task/Runner.php
+++ b/src/Task/Runner.php
@@ -236,7 +236,7 @@ class Runner
     {
         $delay = $this->getDelay();
 
-        usleep($delay * 1000000);
+        usleep((int) ($delay * 1000000));
     }
 
     /**
fix: PHP <I> compatibility for Task\Runner::backOff (#<I>)