diff --git a/requirements.in b/requirements.in
index c1e5b18..d74aa87 100644
--- a/requirements.in
+++ b/requirements.in
@@ -1,3 +1,4 @@
 pip-tools
 raven
 twine
+flake8
diff --git a/requirements.txt b/requirements.txt
index c81c14a..9d559c4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,9 +8,13 @@ certifi==2018.1.18        # via requests
 chardet==3.0.4            # via requests
 click==6.7                # via pip-tools
 first==2.0.1              # via pip-tools
+flake8==3.5.0
 idna==2.6                 # via requests
+mccabe==0.6.1             # via flake8
 pip-tools==1.11.0
 pkginfo==1.4.2            # via twine
+pycodestyle==2.3.1        # via flake8
+pyflakes==1.6.0           # via flake8
 raven==6.5.0
 requests-toolbelt==0.8.0  # via twine
 requests==2.18.4          # via requests-toolbelt, twine
diff --git a/setup.py b/setup.py
index 166e87a..3b7f372 100644
--- a/setup.py
+++ b/setup.py
@@ -3,12 +3,12 @@
 setup(
   name = 'zappa_sentry',
   packages = ['zappa_sentry'],
-  version = '0.2.1',
+  version = '0.2.2',
   description = 'Easy integration with sentry for zappa apps',
   author = 'João Miguel Neves',
   author_email = 'joao@silvaneves.org',
   url = 'https://github.com/jneves/zappa-sentry',
-  download_url = 'https://github.com/jneves/zappa-sentry/archive/0.2.1.tar.gz',
+  download_url = 'https://github.com/jneves/zappa-sentry/archive/0.2.2.tar.gz',
   keywords = 'logging zappa sentry',
   install_requires=[
     'raven'
diff --git a/zappa_sentry/__init__.py b/zappa_sentry/__init__.py
index 9d4b5f8..bff8a8f 100644
--- a/zappa_sentry/__init__.py
+++ b/zappa_sentry/__init__.py
@@ -1,6 +1,7 @@
 from configparser import ConfigParser
 import json
 import os
+import sys
 
 from raven import Client
 from raven.transport.http import HTTPTransport
@@ -15,7 +16,8 @@
 
 def get_raven_client():
     if not this._raven_client:
-        this._raven_client = Client(this.raven_config.get('DEFAULT', 'SENTRY_DSN'), transport=HTTPTransport)
+        this._raven_client = Client(this.raven_config.get('DEFAULT', 'SENTRY_DSN'),
+                                    transport=HTTPTransport)
     return this._raven_client
 
 
@@ -29,7 +31,7 @@ def unhandled_exceptions(e, event, context):
         package_info_file.close()
 
         raven_client.context.merge({'tags': package_info})
-    except:
+    except OSError:
         # not deployed, probably a test
         pass