diff --git a/python_http_client/__init__.py b/python_http_client/__init__.py
index 0d88104..8982521 100644
--- a/python_http_client/__init__.py
+++ b/python_http_client/__init__.py
@@ -19,4 +19,5 @@
 
 dir_path = os.path.dirname(os.path.realpath(__file__))
 if os.path.isfile(os.path.join(dir_path, 'VERSION.txt')):
-    __version__ = open(os.path.join(dir_path, 'VERSION.txt')).read().strip()
+    with open(os.path.join(dir_path, 'VERSION.txt')) as fh:
+        __version__ = fh.read().strip()