diff --git a/tools/stablev8 b/tools/stablev8
new file mode 100755
index 00000000..7f2e4b11
--- /dev/null
+++ b/tools/stablev8
@@ -0,0 +1,10 @@
+#!/usr/bin/python
+
+import urllib
+import json
+
+data = json.load(urllib.urlopen('http://omahaproxy.appspot.com/all.json'))
+for os in data:
+	for version in os['versions']:
+		if version['channel'] == 'stable':
+			print version['v8_version'], os['os']
diff --git a/tools/update-deps b/tools/update-deps
index 7cc0e510..8095c93b 100755
--- a/tools/update-deps
+++ b/tools/update-deps
@@ -25,7 +25,7 @@ kUvBranch = 'v1.10.1'
 kUvWork = 'uv'
 
 kV8Repository = 'https://github.com/v8/v8.git'
-kV8Branch = 'branch-heads/5.5'
+kV8Branch = 'branch-heads/5.6'
 kV8Work = 'v8'
 
 cores = multiprocessing.cpu_count()