diff --git a/common.gypi b/common.gypi
index 713a1d2fa6a50b..943bab5add3387 100644
--- a/common.gypi
+++ b/common.gypi
@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.10',
+    'v8_embedder_string': '-node.11',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/src/compiler/machine-operator.h b/deps/v8/src/compiler/machine-operator.h
index 702c05022373a1..8c373fd6ca1aaa 100644
--- a/deps/v8/src/compiler/machine-operator.h
+++ b/deps/v8/src/compiler/machine-operator.h
@@ -197,6 +197,8 @@ ShiftKind ShiftKindOf(Operator const*) V8_WARN_UNUSED_RESULT;
 // makes it easier to detect an overflow. This parameter is ignored on platforms
 // like x64 and ia32 where a range overflow does not result in INT_MAX.
 enum class TruncateKind { kArchitectureDefault, kSetOverflowToMin };
+std::ostream& operator<<(std::ostream& os, TruncateKind kind);
+size_t hash_value(TruncateKind kind);
 
 // Interface for building machine-level operators. These operators are
 // machine-level but machine-independent and thus define a language suitable