diff --git a/SConstruct b/SConstruct
index ee747e0c..5c0449c8 100644
--- a/SConstruct
+++ b/SConstruct
@@ -5,7 +5,7 @@ import platform
 import sys
 
 options = Variables('options.cache', ARGUMENTS)
-options.AddVariables(PathVariable('uv', 'Location of libuv', 'deps/%s/libuv' % sys.platform))
+options.AddVariables(PathVariable('uv', 'Location of libuv', 'deps/%s/uv' % sys.platform))
 options.AddVariables(PathVariable('v8', 'Location of v8', 'deps/%s/v8' % sys.platform))
 options.AddVariables(PathVariable('lmdb', 'Location of liblmdb', 'deps/%s/lmdb' % sys.platform))
 options.AddVariables(BoolVariable('package', 'Build a package', False))
@@ -52,7 +52,7 @@ else:
 	grouped_libs += [env.Library('build/bin/v8_libbase', Glob(os.path.join(v8, 'out', 'obj', 'v8_libbase', '*' + objectSuffix)))]
 	grouped_libs += [env.Library('build/bin/v8_builtins_generators', Glob(os.path.join(v8, 'out', 'obj', 'v8_builtins_generators', '*' + objectSuffix)))]
 	grouped_libs += [env.Library('build/bin/v8_libsampler', Glob(os.path.join(v8, 'out', 'obj', 'v8_libsampler', '*' + objectSuffix)))]
-	grouped_libs += [env.Library('build/bin/v8_nosnapshot', Glob(os.path.join(v8, 'out', 'obj', 'v8_nosnapshot', '*' + objectSuffix)))]
+	grouped_libs += [env.Library('build/bin/v8_snapshot', Glob(os.path.join(v8, 'out', 'obj', 'v8_snapshot', '*' + objectSuffix)))]
 	grouped_libs += [env.Library('build/bin/icui18n', Glob(os.path.join(v8, 'out', 'obj', 'third_party', 'icu', 'icui18n', '*' + objectSuffix)))]
 	grouped_libs += [env.Library('build/bin/icuuc', Glob(os.path.join(v8, 'out', 'obj', 'third_party', 'icu', 'icuuc', '*' + objectSuffix)))]
 	grouped_libs += ['-Wl,--end-group']
diff --git a/tools/update-deps b/tools/update-deps
index cbb32e35..7e0bbc15 100755
--- a/tools/update-deps
+++ b/tools/update-deps
@@ -25,7 +25,7 @@ kUvBranch = 'v1.16.1'
 kUvWork = 'uv'
 
 kV8Repository = 'https://github.com/v8/v8.git'
-kV8Branch = 'branch-heads/6.2'
+kV8Branch = 'branch-heads/6.3'
 kV8Work = 'v8'
 
 kLmdbRepository = 'https://github.com/LMDB/lmdb.git'
@@ -150,10 +150,10 @@ def updateV8():
 		run(['gclient' + extension, 'sync'], cwd=kV8Work)
 
 	if sys.platform == 'linux2':
-		run(['gn' + extension, 'gen', 'out', "--args=is_component_build=false v8_static_library=true is_clang=false use_sysroot=false treat_warnings_as_errors=false"], cwd=kV8Work, env=win32Env)
+		run(['gn' + extension, 'gen', 'out', "--args=is_component_build=false v8_static_library=true v8_use_external_startup_data=false is_clang=false use_sysroot=false treat_warnings_as_errors=false"], cwd=kV8Work, env=win32Env)
 	else:
-		run(['gn' + extension, 'gen', 'out', "--args=is_component_build=false v8_static_library=true treat_warnings_as_errors=false"], cwd=kV8Work, env=win32Env)
-	run(['ninja', '-C', 'out'], cwd=kV8Work)
+		run(['gn' + extension, 'gen', 'out', "--args=is_component_build=false v8_static_library=true v8_use_external_startup_data=false treat_warnings_as_errors=false"], cwd=kV8Work, env=win32Env)
+	run(['ninja', '-C', 'out', 'v8'], cwd=kV8Work)
 
 if __name__ == '__main__':
 	updateUv()