diff --git a/lib/typescript-node.rb b/lib/typescript-node.rb
index 7d561ba..2a7893e 100644
--- a/lib/typescript-node.rb
+++ b/lib/typescript-node.rb
@@ -23,8 +23,10 @@ def tsc(*args)
       # @return [TypeScript::Node::CompileResult] compile result
       def compile_file(source_file, *tsc_options)
         Dir.mktmpdir do |output_dir|
-          output_file = File.join(output_dir, 'out.js')
-          stdout, stderr, exit_status = tsc(*tsc_options, '--out', output_file, source_file)
+          #output_file = File.join(output_dir, 'out.js')
+          #stdout, stderr, exit_status = tsc(*tsc_options, '--out', output_file, source_file)
+          output_file = source_file.sub(/\.ts\z/, '.js')
+          stdout, stderr, exit_status = tsc(*tsc_options, source_file)
 
           output_js = File.exist?(output_file) ? File.read(output_file) : nil
           CompileResult.new(
diff --git a/lib/typescript-node/version.rb b/lib/typescript-node/version.rb
index e4cf9ea..e3e7fd0 100644
--- a/lib/typescript-node/version.rb
+++ b/lib/typescript-node/version.rb
@@ -1,5 +1,5 @@
 module TypeScript
   module Node
-    VERSION = '1.6.2'
+    VERSION = '2.4.2'
   end
 end
diff --git a/typescript-node.gemspec b/typescript-node.gemspec
index 15897e2..860eed0 100644
--- a/typescript-node.gemspec
+++ b/typescript-node.gemspec
@@ -16,7 +16,7 @@ Gem::Specification.new do |gem|
   gem.require_paths = ["lib"]
   gem.version       = TypeScript::Node::VERSION
 
-  gem.add_dependency 'typescript-src', '~> 1.6.2'
+  gem.add_dependency 'typescript-src', '~> 2.4.2'
   gem.add_development_dependency 'rake'
 
   gem.required_ruby_version = '>= 1.9.3'