diff --git a/.travis.yml b/.travis.yml
index 1675f9b..e72186f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,3 +20,7 @@ matrix:
       script: python setup.py flake8 && python setup.py test
     - python: pypy3
       script: pip install setuptools_scm && python setup.py test 
+
+install:
+  - 'pip install pipenv'
+  - 'pipenv sync'
diff --git a/Pipfile b/Pipfile
new file mode 100644
index 0000000..7062da0
--- /dev/null
+++ b/Pipfile
@@ -0,0 +1,17 @@
+[[source]]
+name = "pypi"
+url = "https://pypi.org/simple"
+verify_ssl = true
+
+[dev-packages]
+
+[packages]
+requests-oauthlib = "*"
+python-dateutil = "*"
+responses = "*"
+mock = "*"
+setuptools-scm = "*"
+PyYAML = "*"
+Sphinx = "==1.3.1"
+pytest-runner = { version = "<= 3.0.1", markers = "python version == 3.3"}
+flake8 = { version = "<= 2.6.2", markers = "python version != 3.* "}
diff --git a/Pipfile.lock b/Pipfile.lock
new file mode 100644
index 0000000..3a9d92b
--- /dev/null
+++ b/Pipfile.lock
@@ -0,0 +1,249 @@
+{
+    "_meta": {
+        "hash": {
+            "sha256": "993aadf09880937910af1d04c67aceb4cef4282614bcc59a09130b66c9712670"
+        },
+        "pipfile-spec": 6,
+        "requires": {
+            "python_version": "2.7"
+        },
+        "sources": [
+            {
+                "name": "pypi",
+                "url": "https://pypi.org/simple",
+                "verify_ssl": true
+            }
+        ]
+    },
+    "default": {
+        "alabaster": {
+            "hashes": [
+                "sha256:446438bdcca0e05bd45ea2de1668c1d9b032e1a9154c2c259092d77031ddd359",
+                "sha256:a661d72d58e6ea8a57f7a86e37d86716863ee5e92788398526d58b26a4e4dc02"
+            ],
+            "version": "==0.7.12"
+        },
+        "babel": {
+            "hashes": [
+                "sha256:6778d85147d5d85345c14a26aada5e478ab04e39b078b0745ee6870c2b5cf669",
+                "sha256:8cba50f48c529ca3fa18cf81fa9403be176d374ac4d60738b839122dfaaa3d23"
+            ],
+            "version": "==2.6.0"
+        },
+        "certifi": {
+            "hashes": [
+                "sha256:59b7658e26ca9c7339e00f8f4636cdfe59d34fa37b9b04f6f9e9926b3cece1a5",
+                "sha256:b26104d6835d1f5e49452a26eb2ff87fe7090b89dfcaee5ea2212697e1e1d7ae"
+            ],
+            "version": "==2019.3.9"
+        },
+        "chardet": {
+            "hashes": [
+                "sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae",
+                "sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691"
+            ],
+            "version": "==3.0.4"
+        },
+        "cookies": {
+            "hashes": [
+                "sha256:15bee753002dff684987b8df8c235288eb8d45f8191ae056254812dfd42c81d3",
+                "sha256:d6b698788cae4cfa4e62ef8643a9ca332b79bd96cb314294b864ae8d7eb3ee8e"
+            ],
+            "markers": "python_version < '3.4'",
+            "version": "==2.2.1"
+        },
+        "docutils": {
+            "hashes": [
+                "sha256:02aec4bd92ab067f6ff27a38a38a41173bf01bed8f89157768c1573f53e474a6",
+                "sha256:51e64ef2ebfb29cae1faa133b3710143496eca21c530f3f71424d77687764274",
+                "sha256:7a4bd47eaf6596e1295ecb11361139febe29b084a87bf005bf899f9a42edc3c6"
+            ],
+            "version": "==0.14"
+        },
+        "funcsigs": {
+            "hashes": [
+                "sha256:330cc27ccbf7f1e992e69fef78261dc7c6569012cf397db8d3de0234e6c937ca",
+                "sha256:a7bb0f2cf3a3fd1ab2732cb49eba4252c2af4240442415b4abce3b87022a8f50"
+            ],
+            "markers": "python_version < '3.3'",
+            "version": "==1.0.2"
+        },
+        "idna": {
+            "hashes": [
+                "sha256:c357b3f628cf53ae2c4c05627ecc484553142ca23264e593d327bcde5e9c3407",
+                "sha256:ea8b7f6188e6fa117537c3df7da9fc686d485087abf6ac197f9c46432f7e4a3c"
+            ],
+            "version": "==2.8"
+        },
+        "jinja2": {
+            "hashes": [
+                "sha256:065c4f02ebe7f7cf559e49ee5a95fb800a9e4528727aec6f24402a5374c65013",
+                "sha256:14dd6caf1527abb21f08f86c784eac40853ba93edb79552aa1e4b8aef1b61c7b"
+            ],
+            "version": "==2.10.1"
+        },
+        "markupsafe": {
+            "hashes": [
+                "sha256:00bc623926325b26bb9605ae9eae8a215691f33cae5df11ca5424f06f2d1f473",
+                "sha256:09027a7803a62ca78792ad89403b1b7a73a01c8cb65909cd876f7fcebd79b161",
+                "sha256:09c4b7f37d6c648cb13f9230d847adf22f8171b1ccc4d5682398e77f40309235",
+                "sha256:1027c282dad077d0bae18be6794e6b6b8c91d58ed8a8d89a89d59693b9131db5",
+                "sha256:24982cc2533820871eba85ba648cd53d8623687ff11cbb805be4ff7b4c971aff",
+                "sha256:29872e92839765e546828bb7754a68c418d927cd064fd4708fab9fe9c8bb116b",
+                "sha256:43a55c2930bbc139570ac2452adf3d70cdbb3cfe5912c71cdce1c2c6bbd9c5d1",
+                "sha256:46c99d2de99945ec5cb54f23c8cd5689f6d7177305ebff350a58ce5f8de1669e",
+                "sha256:500d4957e52ddc3351cabf489e79c91c17f6e0899158447047588650b5e69183",
+                "sha256:535f6fc4d397c1563d08b88e485c3496cf5784e927af890fb3c3aac7f933ec66",
+                "sha256:62fe6c95e3ec8a7fad637b7f3d372c15ec1caa01ab47926cfdf7a75b40e0eac1",
+                "sha256:6dd73240d2af64df90aa7c4e7481e23825ea70af4b4922f8ede5b9e35f78a3b1",
+                "sha256:717ba8fe3ae9cc0006d7c451f0bb265ee07739daf76355d06366154ee68d221e",
+                "sha256:79855e1c5b8da654cf486b830bd42c06e8780cea587384cf6545b7d9ac013a0b",
+                "sha256:7c1699dfe0cf8ff607dbdcc1e9b9af1755371f92a68f706051cc8c37d447c905",
+                "sha256:88e5fcfb52ee7b911e8bb6d6aa2fd21fbecc674eadd44118a9cc3863f938e735",
+                "sha256:8defac2f2ccd6805ebf65f5eeb132adcf2ab57aa11fdf4c0dd5169a004710e7d",
+                "sha256:98c7086708b163d425c67c7a91bad6e466bb99d797aa64f965e9d25c12111a5e",
+                "sha256:9add70b36c5666a2ed02b43b335fe19002ee5235efd4b8a89bfcf9005bebac0d",
+                "sha256:9bf40443012702a1d2070043cb6291650a0841ece432556f784f004937f0f32c",
+                "sha256:ade5e387d2ad0d7ebf59146cc00c8044acbd863725f887353a10df825fc8ae21",
+                "sha256:b00c1de48212e4cc9603895652c5c410df699856a2853135b3967591e4beebc2",
+                "sha256:b1282f8c00509d99fef04d8ba936b156d419be841854fe901d8ae224c59f0be5",
+                "sha256:b2051432115498d3562c084a49bba65d97cf251f5a331c64a12ee7e04dacc51b",
+                "sha256:ba59edeaa2fc6114428f1637ffff42da1e311e29382d81b339c1817d37ec93c6",
+                "sha256:c8716a48d94b06bb3b2524c2b77e055fb313aeb4ea620c8dd03a105574ba704f",
+                "sha256:cd5df75523866410809ca100dc9681e301e3c27567cf498077e8551b6d20e42f",
+                "sha256:e249096428b3ae81b08327a63a485ad0878de3fb939049038579ac0ef61e17e7"
+            ],
+            "version": "==1.1.1"
+        },
+        "mock": {
+            "hashes": [
+                "sha256:5ce3c71c5545b472da17b72268978914d0252980348636840bd34a00b5cc96c1",
+                "sha256:b158b6df76edd239b8208d481dc46b6afd45a846b7812ff0ce58971cf5bc8bba"
+            ],
+            "index": "pypi",
+            "version": "==2.0.0"
+        },
+        "oauthlib": {
+            "hashes": [
+                "sha256:0ce32c5d989a1827e3f1148f98b9085ed2370fc939bf524c9c851d8714797298",
+                "sha256:3e1e14f6cde7e5475128d30e97edc3bfb4dc857cb884d8714ec161fdbb3b358e"
+            ],
+            "version": "==3.0.1"
+        },
+        "pbr": {
+            "hashes": [
+                "sha256:6901995b9b686cb90cceba67a0f6d4d14ae003cd59bc12beb61549bdfbe3bc89",
+                "sha256:d950c64aeea5456bbd147468382a5bb77fe692c13c9f00f0219814ce5b642755"
+            ],
+            "version": "==5.2.0"
+        },
+        "pygments": {
+            "hashes": [
+                "sha256:5ffada19f6203563680669ee7f53b64dabbeb100eb51b61996085e99c03b284a",
+                "sha256:e8218dd399a61674745138520d0d4cf2621d7e032439341bc3f647bff125818d"
+            ],
+            "version": "==2.3.1"
+        },
+        "python-dateutil": {
+            "hashes": [
+                "sha256:7e6584c74aeed623791615e26efd690f29817a27c73085b78e4bad02493df2fb",
+                "sha256:c89805f6f4d64db21ed966fda138f8a5ed7a4fdbc1a8ee329ce1b74e3c74da9e"
+            ],
+            "index": "pypi",
+            "version": "==2.8.0"
+        },
+        "pytz": {
+            "hashes": [
+                "sha256:303879e36b721603cc54604edcac9d20401bdbe31e1e4fdee5b9f98d5d31dfda",
+                "sha256:d747dd3d23d77ef44c6a3526e274af6efeb0a6f1afd5a69ba4d5be4098c8e141"
+            ],
+            "version": "==2019.1"
+        },
+        "pyyaml": {
+            "hashes": [
+                "sha256:1adecc22f88d38052fb787d959f003811ca858b799590a5eaa70e63dca50308c",
+                "sha256:436bc774ecf7c103814098159fbb84c2715d25980175292c648f2da143909f95",
+                "sha256:460a5a4248763f6f37ea225d19d5c205677d8d525f6a83357ca622ed541830c2",
+                "sha256:5a22a9c84653debfbf198d02fe592c176ea548cccce47553f35f466e15cf2fd4",
+                "sha256:7a5d3f26b89d688db27822343dfa25c599627bc92093e788956372285c6298ad",
+                "sha256:9372b04a02080752d9e6f990179a4ab840227c6e2ce15b95e1278456664cf2ba",
+                "sha256:a5dcbebee834eaddf3fa7366316b880ff4062e4bcc9787b78c7fbb4a26ff2dd1",
+                "sha256:aee5bab92a176e7cd034e57f46e9df9a9862a71f8f37cad167c6fc74c65f5b4e",
+                "sha256:c51f642898c0bacd335fc119da60baae0824f2cde95b0330b56c0553439f0673",
+                "sha256:c68ea4d3ba1705da1e0d85da6684ac657912679a649e8868bd850d2c299cce13",
+                "sha256:e23d0cc5299223dcc37885dae624f382297717e459ea24053709675a976a3e19"
+            ],
+            "index": "pypi",
+            "version": "==5.1"
+        },
+        "requests": {
+            "hashes": [
+                "sha256:502a824f31acdacb3a35b6690b5fbf0bc41d63a24a45c4004352b0242707598e",
+                "sha256:7bf2a778576d825600030a110f3c0e3e8edc51dfaafe1c146e39a2027784957b"
+            ],
+            "version": "==2.21.0"
+        },
+        "requests-oauthlib": {
+            "hashes": [
+                "sha256:bd6533330e8748e94bf0b214775fed487d309b8b8fe823dc45641ebcd9a32f57",
+                "sha256:d3ed0c8f2e3bbc6b344fa63d6f933745ab394469da38db16bdddb461c7e25140"
+            ],
+            "index": "pypi",
+            "version": "==1.2.0"
+        },
+        "responses": {
+            "hashes": [
+                "sha256:502d9c0c8008439cfcdef7e251f507fcfdd503b56e8c0c87c3c3e3393953f790",
+                "sha256:97193c0183d63fba8cd3a041c75464e4b09ea0aff6328800d1546598567dde0b"
+            ],
+            "index": "pypi",
+            "version": "==0.10.6"
+        },
+        "setuptools-scm": {
+            "hashes": [
+                "sha256:057a67cb0a33e0f95edd828e47809f49b7104f4bc333a98fd35d4d05738c6187",
+                "sha256:52ab47715fa0fc7d8e6cd15168d1a69ba995feb1505131c3e814eb7087b57358"
+            ],
+            "index": "pypi",
+            "version": "==3.2.0"
+        },
+        "six": {
+            "hashes": [
+                "sha256:3350809f0555b11f552448330d0b52d5f24c91a322ea4a15ef22629740f3761c",
+                "sha256:d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73"
+            ],
+            "version": "==1.12.0"
+        },
+        "snowballstemmer": {
+            "hashes": [
+                "sha256:919f26a68b2c17a7634da993d91339e288964f93c274f1343e3bbbe2096e1128",
+                "sha256:9f3bcd3c401c3e862ec0ebe6d2c069ebc012ce142cce209c098ccb5b09136e89"
+            ],
+            "version": "==1.2.1"
+        },
+        "sphinx": {
+            "hashes": [
+                "sha256:1a6e5130c2b42d2de301693c299f78cc4bd3501e78b610c08e45efc70e2b5114",
+                "sha256:2ddf18da3b0621fa43fee4b7290da0ae789b46fb899278a8acccda195c4979a7"
+            ],
+            "index": "pypi",
+            "version": "==1.3.1"
+        },
+        "sphinx-rtd-theme": {
+            "hashes": [
+                "sha256:273846f8aacac32bf9542365a593b495b68d8035c2e382c9ccedcac387c9a0a1",
+                "sha256:3c38d037713bd78043486eea5bf771d71ed697ec25c09e16f49e44887f7fe184",
+                "sha256:46c2ca8b482b0398b9621bb5a8ec7c9c5c7226926e5363e18d744f5f0d39d78f"
+            ],
+            "version": "==0.1.9"
+        },
+        "urllib3": {
+            "hashes": [
+                "sha256:4c291ca23bbb55c76518905869ef34bdd5f0e46af7afe6861e8375643ffee1a0",
+                "sha256:9a247273df709c4fedb38c711e44292304f73f39ab01beda9f6b9fc375669ac3"
+            ],
+            "version": "==1.24.2"
+        }
+    },
+    "develop": {}
+}
diff --git a/README.rst b/README.rst
index 2303981..a69a382 100644
--- a/README.rst
+++ b/README.rst
@@ -88,7 +88,14 @@ by following the examples below.
     cd twitter-python-ads-sdk
 
     # install dependencies
-    pip install -r requirements.txt
+    pip install pipenv
+    pipenv install
+
+    # active environment
+    pipenv shell
+
+    # run example
+    pipenv run python examples/manual_request.py
 
     # installing a local unsigned release
     pip install -e .
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index 4b31db7..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1,7 +0,0 @@
-pyyaml
-requests-oauthlib
-python-dateutil
-sphinx==1.3.1
-responses
-mock
-setuptools_scm
diff --git a/setup.py b/setup.py
index 0face3d..b11ba2c 100644
--- a/setup.py
+++ b/setup.py
@@ -65,7 +65,7 @@ def get_version(version_tuple):
     platforms=['any'],
     classifiers=CLASSIFIERS,
     scripts=['bin/twitter-ads'],
-    install_requires=['pyyaml', 'requests-oauthlib', 'python-dateutil'],
+    install_requires=['pyyaml', 'requests-oauthlib', 'python-dateutil', 'pipenv'],
     packages=find_packages(exclude=['docs', 'tests']),
     **extra_opts
 )