diff --git a/flask/wrappers.py b/flask/wrappers.py
index da9d2c78..81c39f18 100644
--- a/flask/wrappers.py
+++ b/flask/wrappers.py
@@ -103,7 +103,9 @@ class Request(RequestBase):
 
         The :meth:`get_json` method should be used instead.
         """
-        # XXX: deprecate property
+        from warnings import warn
+        warn(DeprecationWarning('json is deprecated.  '
+                                'Use get_json() instead.'), stacklevel=2)
         return self.get_json()
 
     @property
diff --git a/tests/test_deprecations.py b/tests/test_deprecations.py
index bbbe10ad..e84080bb 100644
--- a/tests/test_deprecations.py
+++ b/tests/test_deprecations.py
@@ -8,3 +8,43 @@
     :copyright: (c) 2014 by Armin Ronacher.
     :license: BSD, see LICENSE for more details.
 """
+
+import pytest
+
+import flask
+
+
+class TestRequestDeprecation(object):
+
+    def test_request_json(self, catch_deprecation_warnings):
+        """Request.json is deprecated"""
+        app = flask.Flask(__name__)
+        app.testing = True
+
+        @app.route('/', methods=['POST'])
+        def index():
+            assert flask.request.json == {'spam': 42}
+            print(flask.request.json)
+            return 'OK'
+
+        with catch_deprecation_warnings() as captured:
+            c = app.test_client()
+            c.post('/', data='{"spam": 42}', content_type='application/json')
+
+        assert len(captured) == 1
+
+    def test_request_module(self, catch_deprecation_warnings):
+        """Request.module is deprecated"""
+        app = flask.Flask(__name__)
+        app.testing = True
+
+        @app.route('/')
+        def index():
+            assert flask.request.module is None
+            return 'OK'
+
+        with catch_deprecation_warnings() as captured:
+            c = app.test_client()
+            c.get('/')
+
+        assert len(captured) == 1