diff --git a/deps/v8/src/objects.h b/deps/v8/src/objects.h
index d9c7a82276c..48a76d32f41 100644
--- a/deps/v8/src/objects.h
+++ b/deps/v8/src/objects.h
@@ -2172,7 +2172,7 @@ class FixedArray: public FixedArrayBase {
   // Maximal allowed size, in bytes, of a single FixedArray.
   // Prevents overflowing size computations, as well as extreme memory
   // consumption.
-  static const int kMaxSize = 512 * MB;
+  static const int kMaxSize = 128 * MB * kPointerSize;
   // Maximally allowed length of a FixedArray.
   static const int kMaxLength = (kMaxSize - kHeaderSize) / kPointerSize;
 
diff --git a/deps/v8/src/version.cc b/deps/v8/src/version.cc
index 399d7148d89..f09914b43a8 100644
--- a/deps/v8/src/version.cc
+++ b/deps/v8/src/version.cc
@@ -35,7 +35,7 @@
 #define MAJOR_VERSION     3
 #define MINOR_VERSION     6
 #define BUILD_NUMBER      6
-#define PATCH_LEVEL       14
+#define PATCH_LEVEL       15
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)
 #define IS_CANDIDATE_VERSION 0