diff --git a/httpbin/core.py b/httpbin/core.py
index ad7c516..1f21b2d 100644
--- a/httpbin/core.py
+++ b/httpbin/core.py
@@ -12,10 +12,7 @@ import json
 import os
 import time
 
-import newrelic.agent
-
 from flask import Flask, Response, request, render_template, redirect, jsonify, make_response
-from raven.contrib.flask import Sentry
 from werkzeug.datastructures import WWWAuthenticate
 
 from . import filters
@@ -36,10 +33,6 @@ ENV_COOKIES = (
 
 app = Flask(__name__)
 
-# Setup error collection
-sentry = Sentry(app)
-newrelic.agent.initialize()
-
 # ------
 # Routes
 # ------
diff --git a/httpbin/helpers.py b/httpbin/helpers.py
index ea45924..1c4986c 100644
--- a/httpbin/helpers.py
+++ b/httpbin/helpers.py
@@ -8,7 +8,7 @@ This module provides helper functions for httpbin.
 """
 
 import base64
-import simplejson as json
+import json
 from hashlib import md5
 from werkzeug.http import parse_authorization_header
 
diff --git a/httpbin/runner.py b/httpbin/runner.py
index b004e97..aa32a46 100755
--- a/httpbin/runner.py
+++ b/httpbin/runner.py
@@ -5,7 +5,7 @@ httpbin.runner
 ~~~~~~~~~~~~~~
 
 This module serves as a command-line runner for httpbin, powered by
-gunicorn.
+gevent.
 
 """
 
diff --git a/requirements.txt b/requirements.txt
index bf31477..7eb0e98 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,15 +2,9 @@ Flask==0.8
 Flask-Script==0.3.1
 Jinja2==2.5.5
 Werkzeug==0.8.1
-argparse==1.2.1
-blinker==1.2
 decorator==3.3.2
 distribute==0.6.15
 eventlet==0.9.16
 greenlet==0.3.1
 gunicorn==0.13.4
-newrelic==1.2.1.265
-raven==1.9.3
-simplejson==2.4.0
-wsgiref==0.1.2
 gevent
\ No newline at end of file
diff --git a/setup.py b/setup.py
index 7525bbf..a24160e 100755
--- a/setup.py
+++ b/setup.py
@@ -20,11 +20,8 @@ deps = [
     'Flask-Script==0.3.1',
     'Jinja2==2.5.5',
     'Werkzeug==0.8.1',
-    'argparse==1.2.1',
     'distribute==0.6.15',
-    'wsgiref==0.1.2',
     'decorator==3.3.2',
-    'omnijson==0.1.2',
     'gevent'
 ]