diff --git a/common.gypi b/common.gypi
index ca0a986bc4f8f4..6c4b04d7d06ecc 100644
--- a/common.gypi
+++ b/common.gypi
@@ -38,7 +38,7 @@
 
     # 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.14',
+    'v8_embedder_string': '-node.15',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/src/builtins/ppc/builtins-ppc.cc b/deps/v8/src/builtins/ppc/builtins-ppc.cc
index 485b793395240a..5ba797f8d78226 100644
--- a/deps/v8/src/builtins/ppc/builtins-ppc.cc
+++ b/deps/v8/src/builtins/ppc/builtins-ppc.cc
@@ -90,7 +90,7 @@ void LoadRealStackLimit(MacroAssembler* masm, Register destination) {
   intptr_t offset =
       TurboAssembler::RootRegisterOffsetForExternalReference(isolate, limit);
   CHECK(is_int32(offset));
-  __ LoadP(destination, MemOperand(kRootRegister, offset));
+  __ LoadP(destination, MemOperand(kRootRegister, offset), r0);
 }
 
 void Generate_StackOverflowCheck(MacroAssembler* masm, Register num_args,