diff --git a/.gitignore b/.gitignore
index be648b3..37d3c2d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -72,3 +72,6 @@ target/
 pyvenv.cfg
 pip-selfcheck.json
 
+# PyCharm
+.idea
+
diff --git a/requirements.txt b/requirements.txt
index 7ac68c2..907786b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,3 +9,4 @@ passlib==1.6.5
 pathtools==0.1.2
 SQLAlchemy-Utils==0.30.16
 pytest==2.7.3
+simplejson==3.8.2
diff --git a/sqlalchemy_jsonapi/flaskext.py b/sqlalchemy_jsonapi/flaskext.py
index 2548d32..d1ef1b5 100644
--- a/sqlalchemy_jsonapi/flaskext.py
+++ b/sqlalchemy_jsonapi/flaskext.py
@@ -6,7 +6,7 @@
 """
 
 import datetime
-import json
+import simplejson as json
 import uuid
 from functools import wraps
 
@@ -35,6 +35,7 @@ def default(self, value):
             return str(value)
         return json.JSONEncoder.default(self, value)
 
+
 #: The views to generate
 views = [
     (Method.GET, Endpoint.COLLECTION), (Method.GET, Endpoint.RESOURCE),
@@ -235,7 +236,7 @@ def new_view(**kwargs):
                 response = override(exc, results)
             rendered_response = make_response('')
             if response.status_code != 204:
-                data = json.dumps(response.data, cls=self.json_encoder)
+                data = json.dumps(response.data, cls=self.json_encoder, use_decimal=True)
                 rendered_response = make_response(data)
             rendered_response.status_code = response.status_code
             rendered_response.content_type = 'application/vnd.api+json'