diff --git a/electron.gyp b/electron.gyp
index 090008a67ffb..e2febbaeee65 100644
--- a/electron.gyp
+++ b/electron.gyp
@@ -298,6 +298,10 @@
               '$(SDKROOT)/System/Library/Frameworks/QTKit.framework',
             ],
           },
+          'xcode_settings': {
+            # ReactiveCocoa which is used by Squirrel requires using __weak.
+            'CLANG_ENABLE_OBJC_WEAK': 'YES',
+          },
         }],  # OS=="mac" and mas_build==0
         ['OS=="mac" and mas_build==1', {
           'defines': [
diff --git a/vendor/brightray b/vendor/brightray
index 75bda7d2118c..a266ffbdf446 160000
--- a/vendor/brightray
+++ b/vendor/brightray
@@ -1 +1 @@
-Subproject commit 75bda7d2118c953b35d8a7d1962067a68dea34fb
+Subproject commit a266ffbdf446b41b9b5d09e55134ebadd774b357