diff --git a/src/Prometheus/Histogram.php b/src/Prometheus/Histogram.php
index 5203d7f4..0e8fc926 100644
--- a/src/Prometheus/Histogram.php
+++ b/src/Prometheus/Histogram.php
@@ -6,7 +6,6 @@
 
 use InvalidArgumentException;
 use Prometheus\Storage\Adapter;
-use Prometheus\Storage\APC;
 
 class Histogram extends Collector
 {