Bumped version to 0.4.0
diff --git a/setup.py b/setup.py
index 4544700..e001557 100644
--- a/setup.py
+++ b/setup.py
@@ -27,7 +27,7 @@
 
 setup(
     name='timeout-decorator',
-    version='0.3.3',
+    version='0.4.0',
     description='Timeout decorator',
     long_description=long_description,
     author='Patrick Ng',
diff --git a/timeout_decorator/__init__.py b/timeout_decorator/__init__.py
index 41c9af9..c802c55 100644
--- a/timeout_decorator/__init__.py
+++ b/timeout_decorator/__init__.py
@@ -4,4 +4,4 @@
 from .timeout_decorator import TimeoutError
 
 __title__ = 'timeout_decorator'
-__version__ = '0.3.3'
+__version__ = '0.4.0'