diff --git a/Pipfile.lock b/Pipfile.lock
index fe9c5e3..f2aee45 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -18,10 +18,10 @@
     "default": {
         "certifi": {
             "hashes": [
-                "sha256:376690d6f16d32f9d1fe8932551d80b23e9d393a8578c5633a2ed39a64861638",
-                "sha256:456048c7e371c089d0a77a5212fb37a2c2dce1e24146e3b7e0261736aaeaa22a"
+                "sha256:339dc09518b07e2fa7eda5450740925974815557727d6bd35d319c1524a04a4c",
+                "sha256:6d58c986d22b038c8c0df30d639f23a3e6d172a05c3583e766f4c0b785c0986a"
             ],
-            "version": "==2018.8.24"
+            "version": "==2018.10.15"
         },
         "chardet": {
             "hashes": [
@@ -32,10 +32,11 @@
         },
         "furl": {
             "hashes": [
-                "sha256:17654103b8d0cbe42798592db099c728165ac12057d49fe2e69de967d87bf29b"
+                "sha256:f7e90e9f85ef3f2e64485f04c2a80b50af6133942812fd87a44d45305b079018",
+                "sha256:fdcaedc1fb19a63d7d875b0105b0a5b496dd0989330d454a42bcb401fa5454ec"
             ],
             "index": "pypi",
-            "version": "==1.2.1"
+            "version": "==2.0.0"
         },
         "idna": {
             "hashes": [
@@ -70,11 +71,11 @@
         },
         "requests": {
             "hashes": [
-                "sha256:63b52e3c866428a224f97cab011de738c36aec0185aa91cfacd418b5d58911d1",
-                "sha256:ec22d826a36ed72a7358ff3fe56cbd4ba69dd7a6718ffd450ff0e9df7a47ce6a"
+                "sha256:99dcfdaaeb17caf6e526f32b6a7b780461512ab3f1d992187801694cba42770c",
+                "sha256:a84b8c9ab6239b578f22d1c21d51b696dcfe004032bb80ea832398d6909d7279"
             ],
             "index": "pypi",
-            "version": "==2.19.1"
+            "version": "==2.20.0"
         },
         "six": {
             "hashes": [
@@ -85,11 +86,10 @@
         },
         "urllib3": {
             "hashes": [
-                "sha256:a68ac5e15e76e7e5dd2b8f94007233e01effe3e50e8daddf69acfd81cb686baf",
-                "sha256:b5725a0bd4ba422ab0e66e89e030c806576753ea3ee08554382c14e685d117b5"
+                "sha256:61bf29cada3fc2fbefad4fdf059ea4bd1b4a86d2b6d15e1c7c0b582b9752fe39",
+                "sha256:de9529817c93f27c8ccbfead6985011db27bd0ddfcdb2d86f3f663385c6a9c22"
             ],
-            "markers": "python_version != '3.1.*' and python_version < '4' and python_version != '3.2.*' and python_version != '3.0.*' and python_version != '3.3.*' and python_version >= '2.6'",
-            "version": "==1.23"
+            "version": "==1.24.1"
         },
         "werkzeug": {
             "hashes": [
@@ -140,7 +140,6 @@
                 "sha256:e8a048bfd7d5a280f27527d11449a509ddedf08b58a09a24314828631c099306",
                 "sha256:f6dd28a0ac60e2426a6918f36f1b4e2620fc785a0de7654cd206ba842eee57fd"
             ],
-            "markers": "python_version >= '3.4.1'",
             "version": "==4.4.2"
         },
         "pyyaml": {
diff --git a/requirements-build.txt b/requirements-build.txt
deleted file mode 100644
index 594b6dc..0000000
--- a/requirements-build.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-orderedmultidict==1.0 --hash=sha256:24e3b730cf84e4a6a68be5cc760864905cf66abc89851e724bd5b4e849eaa96b --hash=sha256:b89895ba6438038d0bdf88020ceff876cf3eae0d5c66a69b526fab31125db2c5
-idna==2.7 --hash=sha256:156a6814fb5ac1fc6850fb002e0852d56c0c8d2531923a51032d1b70760e186e --hash=sha256:684a38a6f903c1d71d6d5fac066b58d7768af4de2b832e426ec79c30daa94a16
-certifi==2018.8.24 --hash=sha256:376690d6f16d32f9d1fe8932551d80b23e9d393a8578c5633a2ed39a64861638 --hash=sha256:456048c7e371c089d0a77a5212fb37a2c2dce1e24146e3b7e0261736aaeaa22a
-requests==2.19.1 --hash=sha256:63b52e3c866428a224f97cab011de738c36aec0185aa91cfacd418b5d58911d1 --hash=sha256:ec22d826a36ed72a7358ff3fe56cbd4ba69dd7a6718ffd450ff0e9df7a47ce6a
-urllib3==1.23 --hash=sha256:a68ac5e15e76e7e5dd2b8f94007233e01effe3e50e8daddf69acfd81cb686baf --hash=sha256:b5725a0bd4ba422ab0e66e89e030c806576753ea3ee08554382c14e685d117b5
-werkzeug==0.14.1 --hash=sha256:c3fd7a7d41976d9f44db327260e263132466836cef6f91512889ed60ad26557c --hash=sha256:d5da73735293558eb1651ee2fddc4d0dedcfa06538b8813a2e20011583c9e49b
-pyyaml==3.13 --hash=sha256:3d7da3009c0f3e783b2c873687652d83b1bbfd5c88e9813fb7e5b03c0dd3108b --hash=sha256:3ef3092145e9b70e3ddd2c7ad59bdd0252a94dfe3949721633e41344de00a6bf --hash=sha256:40c71b8e076d0550b2e6380bada1f1cd1017b882f7e16f09a65be98e017f211a --hash=sha256:558dd60b890ba8fd982e05941927a3911dc409a63dcb8b634feaa0cda69330d3 --hash=sha256:a7c28b45d9f99102fa092bb213aa12e0aaf9a6a1f5e395d36166639c1f96c3a1 --hash=sha256:aa7dd4a6a427aed7df6fb7f08a580d68d9b118d90310374716ae90b710280af1 --hash=sha256:bc558586e6045763782014934bfaf39d48b8ae85a2713117d16c39864085c613 --hash=sha256:d46d7982b62e0729ad0175a9bc7e10a566fc07b224d2c79fafb5e032727eaa04 --hash=sha256:d5eef459e30b09f5a098b9cea68bebfeb268697f78d647bd255a085371ac7f3f --hash=sha256:e01d3203230e1786cd91ccfdc8f8454c8069c91bee3962ad93b87a4b2860f537 --hash=sha256:e170a9e6fcfd19021dd29845af83bb79236068bf5fd4df3327c1be18182b2531
-chardet==3.0.4 --hash=sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae --hash=sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691
-six==1.11.0 --hash=sha256:70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9 --hash=sha256:832dc0e10feb1aa2c68dcc57dbb658f1c7e65b9b61af69048abc87a2db00a0eb
-furl==1.2.1 --hash=sha256:17654103b8d0cbe42798592db099c728165ac12057d49fe2e69de967d87bf29b
diff --git a/requirements-dev.txt b/requirements-dev.txt
new file mode 100644
index 0000000..fa6bd62
--- /dev/null
+++ b/requirements-dev.txt
@@ -0,0 +1,7 @@
+idna==2.7
+multidict==4.4.2 ; python_version >= '3.4.1'
+pyyaml==3.13
+six==1.11.0
+vcrpy==2.0.1
+wrapt==1.10.11
+yarl==1.2.6 ; python_version >= '3.4'
diff --git a/requirements.txt b/requirements.txt
index be31b95..f2fcac3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,10 +1,10 @@
-./localwheels/Werkzeug-0.14.1-py2.py3-none-any.whl --hash=sha256:e224b7be15904cc4fbfdcd0d13dff5c7500d026e634af48c85766d5362fa7b36
-./localwheels/PyYAML-3.13-cp35-cp35m-linux_x86_64.whl --hash=sha256:da7175daaeff8a86a56cc398fb6628d3c3a6965f282789c2c9898e274e4691cd
-./localwheels/chardet-3.0.4-py2.py3-none-any.whl --hash=sha256:e22445af14d9591037e995ee6c59a68b8d7df85b9a47b49a4b28d8601c405ff3
-./localwheels/requests-2.19.1-py2.py3-none-any.whl --hash=sha256:ed6aedaa095be7005b77b157936338883144d9b9c41cbe7665523a313343cca8
-./localwheels/idna-2.7-py2.py3-none-any.whl --hash=sha256:6e8569c478f0343de79c76418c80b7cd13dc93631ede79225dd1314bc8eaf2ed
-./localwheels/urllib3-1.23-py2.py3-none-any.whl --hash=sha256:fc12686dea2604ce4967c45f6aabaf102016320020fd68175f4b0914e017aca5
-./localwheels/orderedmultidict-1.0-py3-none-any.whl --hash=sha256:0519055d46a45f8b44a950f97a8fa7c36f8c5adeb44f3f1a0910a674c95ffbc9
-./localwheels/furl-1.2.1-py3-none-any.whl --hash=sha256:af82dc925eb94ec60fd7ab06ab7ba11209d1dc40a7ee3fa8c9e9c08c6889c94f
-./localwheels/six-1.11.0-py2.py3-none-any.whl --hash=sha256:c2dac6747d031463c7d5873d1ea5d43d4c20ce888f4762d457908f567997c670
-./localwheels/certifi-2018.8.24-py2.py3-none-any.whl --hash=sha256:d232833167262107f3aa658b00e1051d31a6ec095669710eeb8f8f8c888033f9
+certifi==2018.10.15
+chardet==3.0.4
+furl==2.0.0
+idna==2.7
+orderedmultidict==1.0
+pyyaml==3.13
+requests==2.20.0
+six==1.11.0
+urllib3==1.24.1
+werkzeug==0.14.1