diff --git a/server/package.json b/server/package.json
index e647376..ac24fce 100644
--- a/server/package.json
+++ b/server/package.json
@@ -17,7 +17,7 @@
     "cors": "^2.8.5",
     "debug": "^3.1.0",
     "express": "^4.16.2",
-    "express-jwt": "^5.3.0",
+    "express-jwt": "^6.0.0",
     "express-noop": "^1.1.0",
     "express-ws": "^3.0.0",
     "pg": "^8.4.1",
diff --git a/server/yarn.lock b/server/yarn.lock
index 6442c56..005d807 100644
--- a/server/yarn.lock
+++ b/server/yarn.lock
@@ -92,10 +92,6 @@ async-each@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/async-each/-/async-each-1.0.1.tgz#19d386a1d9edc6e7c1c85d388aedbcc56d33602d"
 
-async-mutex@^0.1.4:
-  version "0.1.4"
-  resolved "https://registry.yarnpkg.com/async-mutex/-/async-mutex-0.1.4.tgz#a47d1eebf584f7dcdd760e3642dc2c58613bef5c"
-
 async@^1.5.0:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
@@ -116,10 +112,6 @@ balanced-match@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
 
-base64url@2.0.0, base64url@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/base64url/-/base64url-2.0.0.tgz#eac16e03ea1438eff9423d69baa36262ed1f70bb"
-
 basic-auth@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/basic-auth/-/basic-auth-2.0.0.tgz#015db3f353e02e56377755f962742e8981e7bbba"
@@ -404,11 +396,11 @@ ecc-jsbn@~0.1.1:
   dependencies:
     jsbn "~0.1.0"
 
-ecdsa-sig-formatter@1.0.9:
-  version "1.0.9"
-  resolved "https://registry.yarnpkg.com/ecdsa-sig-formatter/-/ecdsa-sig-formatter-1.0.9.tgz#4bc926274ec3b5abb5016e7e1d60921ac262b2a1"
+ecdsa-sig-formatter@1.0.11:
+  version "1.0.11"
+  resolved "https://registry.yarnpkg.com/ecdsa-sig-formatter/-/ecdsa-sig-formatter-1.0.11.tgz#ae0f0fa2d85045ef14a817daa3ce9acd0489e5bf"
+  integrity sha512-nagl3RYrbNv6kQkeJIpt6NJZy8twLB/2vtz6yN9Z4vRKHN4/QZJIEbqohALSgwKdnksuY3k5Addp5lg8sVoVcQ==
   dependencies:
-    base64url "^2.0.0"
     safe-buffer "^5.0.1"
 
 ee-first@1.1.1:
@@ -471,13 +463,14 @@ expand-range@^1.8.1:
   dependencies:
     fill-range "^2.1.0"
 
-express-jwt@^5.3.0:
-  version "5.3.0"
-  resolved "https://registry.yarnpkg.com/express-jwt/-/express-jwt-5.3.0.tgz#3d90cd65802e6336252f19e6a3df3e149e0c5ea0"
+express-jwt@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/express-jwt/-/express-jwt-6.0.0.tgz#20886c730983ffb1c706a4383235df86eff349b8"
+  integrity sha512-C26y9myRjx7CyhZ+BAT3p+gQyRCoDZ7qo8plCvLDaRT6je6ALIAQknT6XLVQGFKwIy/Ux7lvM2MNap5dt0T7gA==
   dependencies:
     async "^1.5.0"
     express-unless "^0.3.0"
-    jsonwebtoken "^7.3.0"
+    jsonwebtoken "^8.1.0"
     lodash.set "^4.0.0"
 
 express-noop@^1.1.0:
@@ -898,10 +891,6 @@ isarray@1.0.0, isarray@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-1.0.0.tgz#bb935d48582cba168c06834957a54a3e07124f11"
 
-isemail@1.x.x:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/isemail/-/isemail-1.2.0.tgz#be03df8cc3e29de4d2c5df6501263f1fa4595e9a"
-
 isexe@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/isexe/-/isexe-2.0.0.tgz#e8fbf374dc556ff8947a10dcb0572d633f2cfa10"
@@ -916,15 +905,6 @@ isstream@~0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/isstream/-/isstream-0.1.2.tgz#47e63f7af55afa6f92e1500e690eb8b8529c099a"
 
-joi@^6.10.1:
-  version "6.10.1"
-  resolved "https://registry.yarnpkg.com/joi/-/joi-6.10.1.tgz#4d50c318079122000fe5f16af1ff8e1917b77e06"
-  dependencies:
-    hoek "2.x.x"
-    isemail "1.x.x"
-    moment "2.x.x"
-    topo "1.x.x"
-
 jsbn@~0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/jsbn/-/jsbn-0.1.1.tgz#a5e654c2e5a2deb5f201d96cefbca80c0ef2f513"
@@ -947,15 +927,21 @@ jsonify@~0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/jsonify/-/jsonify-0.0.0.tgz#2c74b6ee41d93ca51b7b5aaee8f503631d252a73"
 
-jsonwebtoken@^7.3.0:
-  version "7.4.3"
-  resolved "https://registry.yarnpkg.com/jsonwebtoken/-/jsonwebtoken-7.4.3.tgz#77f5021de058b605a1783fa1283e99812e645638"
-  dependencies:
-    joi "^6.10.1"
-    jws "^3.1.4"
+jsonwebtoken@^8.1.0:
+  version "8.5.1"
+  resolved "https://registry.yarnpkg.com/jsonwebtoken/-/jsonwebtoken-8.5.1.tgz#00e71e0b8df54c2121a1f26137df2280673bcc0d"
+  integrity sha512-XjwVfRS6jTMsqYs0EsuJ4LGxXV14zQybNd4L2r0UvbVnSF9Af8x7p5MzbJ90Ioz/9TI41/hTCvznF/loiSzn8w==
+  dependencies:
+    jws "^3.2.2"
+    lodash.includes "^4.3.0"
+    lodash.isboolean "^3.0.3"
+    lodash.isinteger "^4.0.4"
+    lodash.isnumber "^3.0.3"
+    lodash.isplainobject "^4.0.6"
+    lodash.isstring "^4.0.1"
     lodash.once "^4.0.0"
-    ms "^2.0.0"
-    xtend "^4.0.1"
+    ms "^2.1.1"
+    semver "^5.6.0"
 
 jsprim@^1.2.2:
   version "1.4.1"
@@ -966,21 +952,21 @@ jsprim@^1.2.2:
     json-schema "0.2.3"
     verror "1.10.0"
 
-jwa@^1.1.4:
-  version "1.1.5"
-  resolved "https://registry.yarnpkg.com/jwa/-/jwa-1.1.5.tgz#a0552ce0220742cd52e153774a32905c30e756e5"
+jwa@^1.4.1:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/jwa/-/jwa-1.4.1.tgz#743c32985cb9e98655530d53641b66c8645b039a"
+  integrity sha512-qiLX/xhEEFKUAJ6FiBMbes3w9ATzyk5W7Hvzpa/SLYdxNtng+gcurvrI7TbACjIXlsJyr05/S1oUhZrc63evQA==
   dependencies:
-    base64url "2.0.0"
     buffer-equal-constant-time "1.0.1"
-    ecdsa-sig-formatter "1.0.9"
+    ecdsa-sig-formatter "1.0.11"
     safe-buffer "^5.0.1"
 
-jws@^3.1.4:
-  version "3.1.4"
-  resolved "https://registry.yarnpkg.com/jws/-/jws-3.1.4.tgz#f9e8b9338e8a847277d6444b1464f61880e050a2"
+jws@^3.2.2:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/jws/-/jws-3.2.2.tgz#001099f3639468c9414000e99995fa52fb478304"
+  integrity sha512-YHlZCB6lMTllWDtSPHz/ZXTsi8S00usEV6v1tjq8tOUZzw7DpSDWVXjXDre6ed1w/pd495ODpHZYSdkRTsa0HA==
   dependencies:
-    base64url "^2.0.0"
-    jwa "^1.1.4"
+    jwa "^1.4.1"
     safe-buffer "^5.0.1"
 
 kind-of@^3.0.2:
@@ -1047,6 +1033,11 @@ lodash.defaults@^3.1.2:
     lodash.assign "^3.0.0"
     lodash.restparam "^3.0.0"
 
+lodash.includes@^4.3.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/lodash.includes/-/lodash.includes-4.3.0.tgz#60bb98a87cb923c68ca1e51325483314849f553f"
+  integrity sha1-YLuYqHy5I8aMoeUTJUgzFISfVT8=
+
 lodash.isarguments@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/lodash.isarguments/-/lodash.isarguments-3.1.0.tgz#2f573d85c6a24289ff00663b491c1d338ff3458a"
@@ -1055,6 +1046,31 @@ lodash.isarray@^3.0.0:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/lodash.isarray/-/lodash.isarray-3.0.4.tgz#79e4eb88c36a8122af86f844aa9bcd851b5fbb55"
 
+lodash.isboolean@^3.0.3:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/lodash.isboolean/-/lodash.isboolean-3.0.3.tgz#6c2e171db2a257cd96802fd43b01b20d5f5870f6"
+  integrity sha1-bC4XHbKiV82WgC/UOwGyDV9YcPY=
+
+lodash.isinteger@^4.0.4:
+  version "4.0.4"
+  resolved "https://registry.yarnpkg.com/lodash.isinteger/-/lodash.isinteger-4.0.4.tgz#619c0af3d03f8b04c31f5882840b77b11cd68343"
+  integrity sha1-YZwK89A/iwTDH1iChAt3sRzWg0M=
+
+lodash.isnumber@^3.0.3:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/lodash.isnumber/-/lodash.isnumber-3.0.3.tgz#3ce76810c5928d03352301ac287317f11c0b1ffc"
+  integrity sha1-POdoEMWSjQM1IwGsKHMX8RwLH/w=
+
+lodash.isplainobject@^4.0.6:
+  version "4.0.6"
+  resolved "https://registry.yarnpkg.com/lodash.isplainobject/-/lodash.isplainobject-4.0.6.tgz#7c526a52d89b45c45cc690b88163be0497f550cb"
+  integrity sha1-fFJqUtibRcRcxpC4gWO+BJf1UMs=
+
+lodash.isstring@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/lodash.isstring/-/lodash.isstring-4.0.1.tgz#d527dfb5456eca7cc9bb95d5daeaf88ba54a5451"
+  integrity sha1-1SfftUVuynzJu5XV2ur4i6VKVFE=
+
 lodash.keys@^3.0.0:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/lodash.keys/-/lodash.keys-3.1.2.tgz#4dbc0472b156be50a0b286855d1bd0b0c656098a"
@@ -1160,14 +1176,15 @@ minimist@^1.2.0:
   dependencies:
     minimist "0.0.8"
 
-moment@2.x.x:
-  version "2.20.1"
-  resolved "https://registry.yarnpkg.com/moment/-/moment-2.20.1.tgz#d6eb1a46cbcc14a2b2f9434112c1ff8907f313fd"
-
-ms@2.0.0, ms@^2.0.0:
+ms@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
 
+ms@^2.1.1:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.2.tgz#d09d1f357b443f493382a8eb3ccd183872ae6009"
+  integrity sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==
+
 nan@^2.0.8, nan@^2.3.0:
   version "2.8.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.8.0.tgz#ed715f3fe9de02b57a5e6252d90a96675e1f085a"
@@ -1618,6 +1635,11 @@ semver@^5.0.3, semver@^5.1.0, semver@^5.3.0:
   version "5.4.1"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.4.1.tgz#e059c09d8571f0540823733433505d3a2f00b18e"
 
+semver@^5.6.0:
+  version "5.7.1"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-5.7.1.tgz#a954f931aeba508d307bbf069eff0c01c96116f7"
+  integrity sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==
+
 send@0.16.1:
   version "0.16.1"
   resolved "https://registry.yarnpkg.com/send/-/send-0.16.1.tgz#a70e1ca21d1382c11d0d9f6231deb281080d7ab3"
@@ -1811,12 +1833,6 @@ timed-out@^4.0.0:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/timed-out/-/timed-out-4.0.1.tgz#f32eacac5a175bea25d7fab565ab3ed8741ef56f"
 
-topo@1.x.x:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/topo/-/topo-1.1.0.tgz#e9d751615d1bb87dc865db182fa1ca0a5ef536d5"
-  dependencies:
-    hoek "2.x.x"
-
 touch@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/touch/-/touch-3.1.0.tgz#fe365f5f75ec9ed4e56825e0bb76d24ab74af83b"
@@ -1962,10 +1978,6 @@ xtend@^4.0.0:
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.2.tgz#bb72779f5fa465186b1f438f674fa347fdb5db54"
   integrity sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==
 
-xtend@^4.0.1:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
-
 yallist@^2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"