diff --git a/gclient_config.py b/gclient_config.py
index 75f6d41e6b5e58..d108986d3e0c59 100644
--- a/gclient_config.py
+++ b/gclient_config.py
@@ -1,6 +1,6 @@
 # Copyright 2018 the Deno authors. All rights reserved. MIT license.
 solutions = [{
-    'url': 'https://chromium.googlesource.com/v8/v8.git@7.1.302.4',
+    'url': 'https://chromium.googlesource.com/v8/v8.git@7.2.502.16',
     'name': 'v8',
     'deps_file': 'DEPS',
     'custom_deps': {
diff --git a/libdeno/BUILD.gn b/libdeno/BUILD.gn
index f2a9228c548990..bf780cbaa1fdac 100644
--- a/libdeno/BUILD.gn
+++ b/libdeno/BUILD.gn
@@ -1,6 +1,6 @@
 # Copyright 2018 the Deno authors. All rights reserved. MIT license.
-import("./deno.gni")
 import("//third_party/v8/gni/v8.gni")
+import("./deno.gni")
 
 config("deno_config") {
   include_dirs = [ "//third_party/v8" ]  # This allows us to v8/src/base/ libraries.
diff --git a/libdeno/api.cc b/libdeno/api.cc
index 4721818195e06e..e6bc670c7127c3 100644
--- a/libdeno/api.cc
+++ b/libdeno/api.cc
@@ -154,9 +154,10 @@ int deno_respond(Deno* d_, void* user_data, int32_t req_id, deno_buf buf) {
 
   v8::Local<v8::Value> args[1];
   args[0] = deno::ImportBuf(d, buf);
-  recv_->Call(context->Global(), 1, args);
+  auto v = recv_->Call(context, context->Global(), 1, args);
 
   if (try_catch.HasCaught()) {
+    CHECK(v.IsEmpty());
     deno::HandleException(context, try_catch.Exception());
     return 1;
   }
diff --git a/third_party b/third_party
index f5583353dcef51..20d8e1d12d1dea 160000
--- a/third_party
+++ b/third_party
@@ -1 +1 @@
-Subproject commit f5583353dcef518fc4881e6b2329e8b601ccd042
+Subproject commit 20d8e1d12d1dea843a238576ff988522c028daa0