diff --git a/deps/v8/include/v8-version.h b/deps/v8/include/v8-version.h
index fc3292b05ff939..2101944d14770b 100644
--- a/deps/v8/include/v8-version.h
+++ b/deps/v8/include/v8-version.h
@@ -11,7 +11,7 @@
 #define V8_MAJOR_VERSION 4
 #define V8_MINOR_VERSION 5
 #define V8_BUILD_NUMBER 103
-#define V8_PATCH_LEVEL 46
+#define V8_PATCH_LEVEL 47
 
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)
diff --git a/deps/v8/src/api.cc b/deps/v8/src/api.cc
index ec0f805876fd9c..594d2ebcf20baa 100644
--- a/deps/v8/src/api.cc
+++ b/deps/v8/src/api.cc
@@ -6580,7 +6580,11 @@ Local<ArrayBuffer> v8::ArrayBuffer::New(Isolate* isolate, size_t byte_length) {
   ENTER_V8(i_isolate);
   i::Handle<i::JSArrayBuffer> obj =
       i_isolate->factory()->NewJSArrayBuffer(i::SharedFlag::kNotShared);
-  i::Runtime::SetupArrayBufferAllocatingData(i_isolate, obj, byte_length);
+  // TODO(jbroman): It may be useful in the future to provide a MaybeLocal
+  // version that throws an exception or otherwise does not crash.
+  if (!i::Runtime::SetupArrayBufferAllocatingData(i_isolate, obj, byte_length)) {
+    i::FatalProcessOutOfMemory("v8::ArrayBuffer::New");
+  }
   return Utils::ToLocal(obj);
 }
 
@@ -6775,8 +6779,12 @@ Local<SharedArrayBuffer> v8::SharedArrayBuffer::New(Isolate* isolate,
   ENTER_V8(i_isolate);
   i::Handle<i::JSArrayBuffer> obj =
       i_isolate->factory()->NewJSArrayBuffer(i::SharedFlag::kShared);
-  i::Runtime::SetupArrayBufferAllocatingData(i_isolate, obj, byte_length, true,
-                                             i::SharedFlag::kShared);
+  // TODO(jborman): It may be useful in the future to provide a MaybeLocal
+  // version that throws an exception or otherwise does not crash.
+  if (!i::Runtime::SetupArrayBufferAllocatingData(i_isolate, obj, byte_length, true,
+                                             i::SharedFlag::kShared)) {
+    i::FatalProcessOutOfMemory("v8::SharedArrayBuffer::New");
+  }
   return Utils::ToLocalShared(obj);
 }