diff --git a/CHANGELOG.md b/CHANGELOG.md
index e0a21c2c..e51ff4e2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -21,6 +21,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Support for creating a code cache from an UnboundScript which can be used to create an UnboundScript in other isolates
 to run a pre-compiled script in new contexts.
 - Included compile error location in `%+v` formatting of JSError
+- Enable i18n support
 
 ### Changed
 - Removed error return value from NewIsolate which never fails
diff --git a/deps/build.py b/deps/build.py
index 58f88dd4..740218f5 100755
--- a/deps/build.py
+++ b/deps/build.py
@@ -64,7 +64,8 @@
 treat_warnings_as_errors=false
 v8_embedder_string="-v8go"
 v8_enable_gdbjit=false
-v8_enable_i18n_support=false
+v8_enable_i18n_support=true
+icu_use_data_file=false
 v8_enable_test_features=false
 v8_untrusted_code_mitigations=false
 exclude_unwind_tables=true
diff --git a/deps/darwin_arm64/libv8.a b/deps/darwin_arm64/libv8.a
index 14be24b7..b5889142 100644
Binary files a/deps/darwin_arm64/libv8.a and b/deps/darwin_arm64/libv8.a differ
diff --git a/deps/darwin_x86_64/libv8.a b/deps/darwin_x86_64/libv8.a
index e25fe2d8..e77e0ce1 100644
Binary files a/deps/darwin_x86_64/libv8.a and b/deps/darwin_x86_64/libv8.a differ
diff --git a/deps/depot_tools b/deps/depot_tools
index c54d00e9..2e486c0d 160000
--- a/deps/depot_tools
+++ b/deps/depot_tools
@@ -1 +1 @@
-Subproject commit c54d00e9f585cc389687b00418b47c2030fa25cd
+Subproject commit 2e486c0d9d44e651a4def1d8397e4dfa1871ee65
diff --git a/deps/linux_x86_64/libv8.a b/deps/linux_x86_64/libv8.a
index 2e7ef300..cf53908a 100644
Binary files a/deps/linux_x86_64/libv8.a and b/deps/linux_x86_64/libv8.a differ
diff --git a/intl_test.go b/intl_test.go
new file mode 100644
index 00000000..87bf2e6e
--- /dev/null
+++ b/intl_test.go
@@ -0,0 +1,62 @@
+// Copyright 2021 the v8go contributors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package v8go_test
+
+import (
+	"testing"
+
+	v8 "rogchap.com/v8go"
+)
+
+func TestIntlSupport(t *testing.T) {
+	t.Parallel()
+
+	ctx := v8.NewContext(nil)
+	iso := ctx.Isolate()
+	defer iso.Dispose()
+	defer ctx.Close()
+
+	v, err := ctx.RunScript("typeof Intl === 'object'", "test.js")
+	fatalIf(t, err)
+	if !v.Boolean() {
+		t.Fatalf("expected value to be true, but was false")
+	}
+
+	v, err = ctx.RunScript("new Intl.NumberFormat()", "test.js")
+	fatalIf(t, err)
+	if v.String() != "[object Intl.NumberFormat]" {
+		t.Fatalf("expected value to be [object Intl.NumberFormat], but was %v", v)
+	}
+
+	v, err = ctx.RunScript("new Intl.DateTimeFormat('es', { month: 'long' }).format(new Date(9E8))", "test.js")
+	fatalIf(t, err)
+	if v.String() != "enero" {
+		t.Fatalf("expected value to be enero, but was %v", v)
+	}
+
+	// Example from the node.js documentation:
+	// https://github.com/nodejs/node/blob/2e2a6fecd9b1aaffcb932fcc415439f359c84fdd/doc/api/intl.md?plain=1#L175-L183
+	script := `const hasFullICU = (() => {
+try {
+	const january = new Date(9e8);
+	const spanish = new Intl.DateTimeFormat('es', { month: 'long' });
+	return spanish.format(january) === 'enero';
+} catch (err) {
+	return false;
+}
+})(); hasFullICU`
+
+	v, err = ctx.RunScript(script, "test.js")
+	fatalIf(t, err)
+	if !v.Boolean() {
+		t.Fatalf("expected value to be true, but was %v", v)
+	}
+
+	v, err = ctx.RunScript("var number = 123456.789; new Intl.NumberFormat('de-DE').format(number)", "test.js")
+	fatalIf(t, err)
+	if v.String() != "123.456,789" {
+		t.Fatalf("expected value to be %v, but was %v", "123.456,789", v)
+	}
+}