diff --git a/requirements-dev.txt b/requirements-dev.txt
index 514f5fe..d3485ec 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,8 +1,8 @@
 -r requirements.txt
 
-pytest==3.2.1 \
-    --hash=sha256:82c1e44a964ec5922c7c3891787df31c8c4f18b6c97a722df56b6cf20bb38c8a \
-    --hash=sha256:4c2159d2be2b4e13fa293e7a72bdf2f06848a017150d5c6d35112ce51cfd74ce
+pytest==3.2.2 \
+    --hash=sha256:b84f554f8ddc23add65c411bf112b2d88e2489fd45f753b1cae5936358bdf314 \
+    --hash=sha256:f46e49e0340a532764991c498244a60e3a37d7424a532b3ff1a6a7653f1a403a
 pytest-django==3.1.2 \
     --hash=sha256:00995c2999b884a38ae9cd30a8c00ed32b3d38c1041250ea84caf18085589662 \
     --hash=sha256:038ccc5a9daa1b1b0eb739ab7dce54e495811eca5ea3af4815a2a3ac45152309
@@ -13,9 +13,9 @@ factory-boy==2.9.2 \
 python-dateutil==2.6.1 \
     --hash=sha256:95511bae634d69bc7329ba55e646499a842bc4ec342ad54a8cdb65645a0aad3c \
     --hash=sha256:891c38b2a02f5bb1be3e4793866c8df49c7d19baabf9c1bad62547e0b4866aca
-Sphinx==1.6.3 \
-    --hash=sha256:3ea0faf3e152a0e40372d8495c8cbd59e93f89266231c367d8098ec0dfede98f \
-    --hash=sha256:af8bdb8c714552b77d01d4536e3d6d2879d6cb9d25423d29163d5788e27046e6
+Sphinx==1.6.4 \
+    --hash=sha256:3e70eb94f7e81b47e0545ebc26b758193b6c8b222e152ded99b9c972e971c731 \
+    --hash=sha256:f101efd87fbffed8d8aca6ef307fec57693334f39d32efcbc2fc96ed129f4a3e
 pbr==3.1.1 \
     --hash=sha256:60c25b7dfd054ef9bb0ae327af949dd4676aa09ac3a9471cdc871d8a9213f9ac \
     --hash=sha256:05f61c71aaefc02d8e37c0a3eeb9815ff526ea28b3b76324769e6158d7f95be1
@@ -33,9 +33,9 @@ docutils==0.14 \
 alabaster==0.7.10 \
     --hash=sha256:2eef172f44e8d301d25aff8068fddd65f767a3f04b5f15b0f4922f113aa1c732 \
     --hash=sha256:37cdcb9e9954ed60912ebc1ca12a9d12178c26637abdf124e3cde2341c257fe0
-babel==2.5.0 \
-    --hash=sha256:e0d07af61ff43729f61dc838f2af283c315e671454e7cf9d744ac9c56cccfca6 \
-    --hash=sha256:754177ee7481b6fac1bf84edeeb6338ab51640984e97e4083657d384b1c8830d
+babel==2.5.1 \
+    --hash=sha256:f20b2acd44f587988ff185d8949c3e208b4b3d5d20fcab7d91fe481ffa435528 \
+    --hash=sha256:6007daf714d0cd5524bbe436e2d42b3c20e68da66289559341e48d2cd6d25811
 snowballstemmer==1.2.1 --hash=sha256:9f3bcd3c401c3e862ec0ebe6d2c069ebc012ce142cce209c098ccb5b09136e89
 urlwait==0.4 \
     --hash=sha256:fc39ff2c8abbcaad5043e1f79699dcb15a036cc4b0ff4d1aa825ea105d4889ff \
@@ -58,9 +58,9 @@ requests-mock==1.3.0 \
 pytest-wholenodeid==0.2 \
     --hash=sha256:6bc4edaf560c8b45ac4669bb8b99d8fbbb7f6e5af8dc7727200cd4d3ef4668c2 \
     --hash=sha256:bdcb4df88ca182a19752ef95150c0881deaafc2c593ef67c61515894e5309206
-Faker==0.8.1 \
-    --hash=sha256:ffb1deb50b63f2fcddcf4883b3e03a7c6537a4f2747cdea8d56ec20d7885f0c7 \
-    --hash=sha256:c90e5cae6aa114bcaf17d8f007683b3520df3d31cdf09f3eeeb8ec8e760f9b04
+Faker==0.8.4 \
+    --hash=sha256:ca0f4944b5cbe0f238df13fa7014f415a6b94a9bd3fb66c4338cf846f2681b7f \
+    --hash=sha256:21b18afb9f642738805efee06e831ecbbb23a27fb741ed61512c6021c4c083c9
 sphinxcontrib-websupport==1.0.1 \
     --hash=sha256:7a85961326aa3a400cd4ad3c816d70ed6f7c740acd7ce5d78cd0a67825072eb9 \
     --hash=sha256:f4932e95869599b89bf4f80fc3989132d83c9faa5bf633e7b5e0c25dffb75da2
diff --git a/requirements.txt b/requirements.txt
index c27fde7..6bf0d6f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,9 +33,9 @@ psycopg2==2.7.3.1 \
     --hash=sha256:9b7b16e26448b43cf167f785d8b5345007731ebf153a510e12dae826800caa65
 
 # static files
-whitenoise==3.3.0 \
-    --hash=sha256:1d62a003a0ab747de96da45c831cbb512dcb7f69c1ef0bd20b1cd4ae45d8a0c4 \
-    --hash=sha256:d098327276de6fd189398a7bcb95789d1bb2d41b3e011eeae4562f6b1a107dd4
+whitenoise==3.3.1 \
+    --hash=sha256:15f43b2e701821b95c9016cf469d29e2a546cb1c7dead584ba82c36f843995cf \
+    --hash=sha256:9d81515f2b5b27051910996e1e860b1332e354d9e7bcf30c98f21dcb6713e0dd
 
 # configuration
 configobj==5.0.6 \
@@ -51,9 +51,9 @@ dj-database-url==0.4.2 \
 Django==1.11.5 \
     --hash=sha256:89162f70a74aac62a53f975128faba6099a7ef2c9d8140a41ae9d6210bda05cd \
     --hash=sha256:1836878162dfdf865492bacfdff0321e4ee8f1e7d51d93192546000b54982b29
-bleach==2.0.0 \
-    --hash=sha256:a6d9d5f5b7368c1689ad7f128af8e792beea23393688872b576c0271e6564a16 \
-    --hash=sha256:b9522130003e4caedf4f00a39c120a906dcd4242329c1c8f621f5370203cbc30
+bleach==2.1 \
+    --hash=sha256:5af0d57de7aa81d13466e9c283a5aa94fe02ff1c13b4e678839cf37db9351f6b \
+    --hash=sha256:f03041b8da8005c8bfa7f58de87a7ff59b07bb66d050ea67d2397ad14e54bb6f
 gunicorn==19.7.1 \
     --hash=sha256:75af03c99389535f218cc596c7de74df4763803f7b63eb09d77e92b3956b36c6 \
     --hash=sha256:eee1169f0ca667be05db3351a0960765620dad53f53434262ff8901b68a1b622
@@ -70,9 +70,9 @@ MarkupSafe==1.0 \
 django-jinja-markdown==1.0.1 --hash=sha256:233dcde5d6895416f5613e4ca030e88f18a163e4b676e7aa815d191754f53085
 Markdown==2.6.9 \
     --hash=sha256:73af797238b95768b3a9b6fe6270e250e5c09d988b8e5b223fd5efa4e06faf81
-six==1.10.0 \
-    --hash=sha256:0ff78c403d9bccf5a425a6d31a12aa6b47f1c21ca4dc2573a7e2f32a97335eb1 \
-    --hash=sha256:105f8d68616f8248e24bf0e9372ef04d3cc10104f1980f54d57b2ce73a5ad56a
+six==1.11.0 \
+    --hash=sha256:832dc0e10feb1aa2c68dcc57dbb658f1c7e65b9b61af69048abc87a2db00a0eb \
+    --hash=sha256:70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9
 html5lib==0.999999999 \
     --hash=sha256:b8934484cf22f1db684c0fae27569a0db404d0208d20163fbf51cc537245d008 \
     --hash=sha256:ee747c0ffd3028d2722061936b5c65ee4fe13c8e4613519b4447123fc4546298
@@ -81,29 +81,28 @@ django-pipeline==1.6.13 \
     --hash=sha256:d67ac0fc2556e3c5b5080ee96f8e661bda9a1e4b46b8fffbef3fb5524b6ef11e
 https://github.com/pmac/django-gravatar/archive/5f88e14fb6dd3134a46e2a961ab2782591e85f28.tar.gz#egg=django-gravatar2==1.4.0 \
     --hash=sha256:45ff4567de125c16b718c1b1829a2e000e6f7901149e0a05a1f65cdc3076aa62
-PyJWT==1.5.2 \
-    --hash=sha256:9e7d780c30cd03bb0d29510b03e09caa95c6d880b3897450eb0f2d1678d3e5b1 \
-    --hash=sha256:1179f0bff86463b5308ee5f7aff1c350e1f38139d62a723e16fb2c557d1c795f
+PyJWT==1.5.3 \
+    --hash=sha256:a4e5f1441e3ca7b382fd0c0b416777ced1f97c64ef0c33bfa39daf38505cfd2f \
+    --hash=sha256:500be75b17a63f70072416843dc80c8821109030be824f4d14758f114978bae7
 defusedxml==0.5.0 \
     --hash=sha256:702a91ade2968a82beb0db1e0766a6a273f33d4616a6ce8cde475d8e09853b20 \
     --hash=sha256:24d7f2f94f7f3cb6061acb215685e5125fbcdc40a857eff9de22518820b0a4f4
 requests==2.18.4 \
     --hash=sha256:6a1b267aa90cac58ac3a765d067950e7dbbf75b1da07e895d1f594193a40a38b \
     --hash=sha256:9c443e7324ba5b85070c4a818ade28bfabedf16ea10206da1132edaa6dda237e
-raven==6.1.0 \
-    --hash=sha256:56dc9062dd42bca97350e5048ff417c914376366caa3b1b5f788b27ddc0a34b7 \
-    --hash=sha256:02cabffb173b99d860a95d4908e8b1864aad1b8452146e13fd7e212aa576a884
+raven==6.2.1 \
+    --hash=sha256:f58ead6842c02d427617e827f4c0a97cfd3f8b648a52e53ef12182002a8663cb \
+    --hash=sha256:c0a30bcc3e3206059f79656d80362ce080b1c991c95d867edce559a7294570fe
 contextlib2==0.5.5 \
     --hash=sha256:f5260a6e679d2ff42ec91ec5252f4eeffdcf21053db9113bd0a8e4d953769c00 \
     --hash=sha256:509f9419ee91cdd00ba34443217d5ca51f5a364a404e1dce9e8979cea969ca48
-newrelic==2.90.0.75 \
-    --hash=sha256:c57b89b170b208567989f4ff8066aa2a3abd22e9b95e765cfbef3b950f9f0040
+newrelic==2.94.0.79 \
+    --hash=sha256:051577a6a59c3d4b0b6e7cc03f8826a35f450ce66597d5832d237afa008f3dc9
 django-cache-url==2.0.0 \
     --hash=sha256:d7e7d3f3fadaa38ab7c655afafc85c2a1b06a3ddc0002af4ae021c1948307f8b \
     --hash=sha256:f0009452c4d63468714c7ff59266085947f3f3cc0947b3b2e87121bb27538d6c
-tabulate==0.7.7 \
-    --hash=sha256:1f07f6252b20cdc4ed744b598b5fa8362638988b50a62f3e2ad76c97fc02eef2 \
-    --hash=sha256:83a0b8e17c09f012090a50e1e97ae897300a72b35e0c86c0b53d3bd2ae86d8c6
+tabulate==0.8.0 \
+    --hash=sha256:682d903555bcf24b881835c0bcbec1841d156aacacd29cf050d8ce9c522ac343
 simplejson==3.11.1 \
     --hash=sha256:38c2b563cd03363e7cb2bbba6c20ae4eaafd853a83954c8c8dd345ee391787bf \
     --hash=sha256:8d73b96a6ee7c81fd49dac7225e3846fd60b54a0b5b93a0aaea04c5a5d2e7bf2 \
@@ -138,9 +137,9 @@ pytz==2017.2 \
 mozilla-django-oidc==0.3.1 \
     --hash=sha256:f906d4ea1879ee588da4a4369013ade19101624516b977fc96b271144123b446 \
     --hash=sha256:59abd3941ba3471a7baef18a0f704868821cc48ccedd6469fa9e1d08fdc737f3
-python-jose==1.3.2 \
-    --hash=sha256:35eca894ab91db1774251296949679396c46d6bc506ea03804b8f7a7d0204392 \
-    --hash=sha256:968254f57ccd0fc99ab9557f82b90a5b23ccaf3716e8817d8edaa9f21c21bb2d
+python-jose==1.4.0 \
+    --hash=sha256:fed56224664af0ebc3947853f1bed23b5609f90c7b02e3dce5ef5757d0301664 \
+    --hash=sha256:18e19f200f37a8ee6247921572807cc63ee034abdbf6854df1ae7c1f505cabcc
 pycrypto==2.6.1 \
     --hash=sha256:f2ce1e989b272cfcb677616763e0a2e7ec659effa67a88aa92b3a65528f60a3c
 ecdsa==0.13 \
@@ -168,8 +167,10 @@ certifi==2017.7.27.1 \
     --hash=sha256:40523d2efb60523e113b44602298f0960e900388cf3bb6043f645cf57ea9e3f5
 email_validator==1.0.3 \
     --hash=sha256:ddc4b5b59fa699bb10127adcf7ad4de78fde4ec539a072b104b8bb16da666ae5
-UkPostcodeParser==1.1.1 \
-    --hash=sha256:b7a7ac19d48897637c7aaa2f2970288f1c260e4a99140bf04c6086cf65576c6b
+UkPostcodeParser==1.1.2 \
+    --hash=sha256:2fde05ec11af6faa93de42753d4b676988831dbdc430d6a9e49304e65cd05fd7 \
+    --hash=sha256:f6b45434b73f1782bdb0f952036cd9f07a55d20ed184f2c42ff3695847d444d9 \
+    --hash=sha256:930264efa293db80af0103a4fe9c161b06365598d24bb6fe5403f3f57c70530e
 dnspython==1.15.0 \
     --hash=sha256:861e6e58faa730f9845aaaa9c6c832851fbf89382ac52915a51f89c71accdd31 \
     --hash=sha256:40f563e1f7a7b80dc5a4e76ad75c23da53d62f1e15e6e517293b04e1f84ead7c