diff --git a/package.json b/package.json
index f3fa4c9..722cec3 100644
--- a/package.json
+++ b/package.json
@@ -25,26 +25,26 @@
   "author": "Friedel Ziegelmayer <dignifiedquire@gmail.com>",
   "license": "MIT",
   "dependencies": {
-    "async": "^2.1.2",
-    "debug": "^2.3.2",
+    "async": "^2.1.4",
+    "debug": "^2.6.0",
     "interface-connection": "^0.3.0",
-    "libp2p-crypto": "^0.7.2",
+    "libp2p-crypto": "^0.7.6",
     "multihashing-async": "^0.3.0",
-    "peer-id": "^0.8.0",
-    "protocol-buffers": "^3.1.8",
+    "peer-id": "^0.8.1",
+    "protocol-buffers": "^3.2.1",
     "pull-defer": "^0.2.2",
     "pull-handshake": "^1.1.4",
     "pull-length-prefixed": "^1.2.0",
     "pull-stream": "^3.5.0"
   },
   "devDependencies": {
-    "aegir": "^9.2.1",
-    "benchmark": "^2.1.2",
+    "aegir": "^9.3.3",
+    "benchmark": "^2.1.3",
     "chai": "^3.5.0",
     "gulp": "^3.9.1",
     "libp2p-websockets": "^0.9.1",
-    "multistream-select": "^0.13.0",
-    "pre-commit": "^1.2.0",
+    "multistream-select": "^0.13.2",
+    "pre-commit": "^1.2.2",
     "pull-goodbye": "0.0.1",
     "pull-pair": "^1.1.0"
   },
diff --git a/src/handshake/crypto.js b/src/handshake/crypto.js
index 09dc488..8d5a768 100644
--- a/src/handshake/crypto.js
+++ b/src/handshake/crypto.js
@@ -18,7 +18,7 @@ const nonceSize = 16
 
 exports.createProposal = (state) => {
   state.proposal.out = {
-    rand: support.randomBytes(nonceSize),
+    rand: crypto.randomBytes(nonceSize),
     pubkey: state.key.local.public.bytes,
     exchanges: support.exchanges.join(','),
     ciphers: support.ciphers.join(','),
diff --git a/src/support.js b/src/support.js
index 71eba0e..55d317f 100644
--- a/src/support.js
+++ b/src/support.js
@@ -76,10 +76,6 @@ function makeCipher (cipherType, iv, key, callback) {
   callback(new Error(`unrecognized cipher type: ${cipherType}`))
 }
 
-exports.randomBytes = (nonceSize) => {
-  return Buffer.from(crypto.webcrypto.getRandomValues(new Uint8Array(nonceSize)))
-}
-
 exports.selectBest = (local, remote, cb) => {
   exports.digest(Buffer.concat([
     remote.pubKeyBytes,