diff --git a/composer.json b/composer.json
index efbe136..91e9747 100644
--- a/composer.json
+++ b/composer.json
@@ -1,7 +1,7 @@
 {
     "name": "macroman/rate-limiter",
     "description": "General framework agnostic rate limiter",
-    "version": "1.0.2",
+    "version": "1.0.3",
     "type": "library",
     "homepage": "https://github.com/MacroMan/rate-limiter",
     "license": "GPL-3.0-or-later",
diff --git a/src/RateLimiter/Limiter.php b/src/RateLimiter/Limiter.php
index 6cd1b71..421981d 100644
--- a/src/RateLimiter/Limiter.php
+++ b/src/RateLimiter/Limiter.php
@@ -52,7 +52,7 @@ public function await(): void
 
         if (!$this->is_free()) {
             $wait_duration = $this->duration_until_free();
-            usleep($wait_duration);
+            usleep(ceil($wait_duration));
         }
     }