diff --git a/README.md b/README.md
index cc0617d7..357db2c4 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Rusty V8 Binding
 
-V8 Version: 12.0.267.8
+V8 Version: 12.1.285.27
 
 [![ci](https://github.com/denoland/rusty_v8/workflows/ci/badge.svg?branch=main)](https://github.com/denoland/rusty_v8/actions)
 [![crates](https://img.shields.io/crates/v/v8.svg)](https://crates.io/crates/v8)
diff --git a/v8 b/v8
index 5fec337f..ef137516 160000
--- a/v8
+++ b/v8
@@ -1 +1 @@
-Subproject commit 5fec337f209fd2db7519cfe398e10b3aa2e587ab
+Subproject commit ef1375169ab459a6e0219f849769bd949d10fe42