diff --git a/composer.json b/composer.json
index c4efcee..db074ff 100644
--- a/composer.json
+++ b/composer.json
@@ -37,7 +37,7 @@
         "php": ">=7.0",
         "amphp/amp": "^2",
         "amphp/byte-stream": "^1.1",
-        "amphp/cache": "^1",
+        "amphp/cache": "^1.2",
         "amphp/file": "^0.2 || ^0.3",
         "amphp/parser": "^1",
         "amphp/uri": "^0.1",
diff --git a/lib/BasicResolver.php b/lib/BasicResolver.php
index 8af723a..bd88ff8 100644
--- a/lib/BasicResolver.php
+++ b/lib/BasicResolver.php
@@ -48,7 +48,7 @@ final class BasicResolver implements Resolver {
     private $gcWatcher;
 
     public function __construct(Cache $cache = null, ConfigLoader $configLoader = null) {
-        $this->cache = $cache ?? new ArrayCache;
+        $this->cache = $cache ?? new ArrayCache(5000 /* default gc interval */, 256 /* size */);
         $this->configLoader = $configLoader ?? (\stripos(PHP_OS, "win") === 0
                 ? new WindowsConfigLoader
                 : new UnixConfigLoader);