diff --git a/composer.json b/composer.json
index c5b5934..182a3a5 100644
--- a/composer.json
+++ b/composer.json
@@ -41,7 +41,7 @@
         "evenement/evenement": "^3.0 || ^2.0 || ^1.0",
         "react/event-loop": "^1.2",
         "react/dns": "^1.7",
-        "react/promise": "~2.1|~1.2"
+        "react/promise": "^3 || ^2.1 || ^1.2"
     },
     "require-dev": {
         "clue/block-react": "~1.0",
diff --git a/src/Factory.php b/src/Factory.php
index f5e6d18..89586a6 100644
--- a/src/Factory.php
+++ b/src/Factory.php
@@ -9,7 +9,6 @@
 use React\EventLoop\Loop;
 use React\EventLoop\LoopInterface;
 use React\Promise;
-use React\Promise\CancellablePromiseInterface;
 use \Exception;
 
 class Factory
@@ -140,7 +139,7 @@ function ($_, $reject) use ($promise) {
                 $reject(new \RuntimeException('Cancelled creating socket during DNS lookup'));
 
                 // (try to) cancel pending DNS lookup, otherwise ignoring its results
-                if ($promise instanceof CancellablePromiseInterface) {
+                if (\method_exists($promise, 'cancel')) {
                     $promise->cancel();
                 }
             }