diff --git a/package.json b/package.json
index 8d596f2e..7c1af8b1 100644
--- a/package.json
+++ b/package.json
@@ -39,8 +39,8 @@
     "pre-commit": "^1.2.2"
   },
   "dependencies": {
-    "libp2p-ping": "~0.3.0",
-    "libp2p-swarm": "~0.26.14",
+    "libp2p-ping": "~0.3.1",
+    "libp2p-swarm": "~0.26.16",
     "mafmt": "^2.1.6",
     "multiaddr": "^2.2.1",
     "peer-book": "~0.3.1",
diff --git a/src/index.js b/src/index.js
index 60c3fc1f..47984055 100644
--- a/src/index.js
+++ b/src/index.js
@@ -9,6 +9,7 @@ const mafmt = require('mafmt')
 const EE = require('events').EventEmitter
 const assert = require('assert')
 const Ping = require('libp2p-ping')
+const setImmediate = require('async/setImmediate')
 
 exports = module.exports