Pinning version to Apistar 0.3.9

.gitignore

@@ -10,6 +10,7 @@ __pycache__/
 # Distribution / packaging
 .Python
 env/
+venv/
 build/
 develop-eggs/
 dist/
@@ -44,6 +45,7 @@ htmlcov/
 nosetests.xml
 coverage.xml
 *,cover
+.pytest_cache/
 
 # Translations
 *.mo

setup.py

@@ -7,7 +7,7 @@ with open('HISTORY.md') as history_file:
     history = history_file.read()
 
 requirements = [
-    'apistar',
+    'apistar~=0.3.9',
 ]
 
 test_requirements = [