diff --git a/yarn.lock b/yarn.lock
index 4197dd4..da13216 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -370,9 +370,9 @@ bluebird@^3.0, bluebird@^3.0.5, bluebird@^3.3.4, bluebird@^3.4.6, bluebird@~3.4.
   version "3.4.7"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.4.7.tgz#f72d760be09b7f76d08ed8fae98b289a8d05fab3"
 
-bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.1.1, bn.js@^4.4.0:
-  version "4.11.7"
-  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.7.tgz#ddb048e50d9482790094c13eb3fcfc833ce7ab46"
+bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.1.1, bn.js@^4.11.9:
+  version "4.12.0"
+  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.12.0.tgz#775b3f278efbb9718eec7361f483fb36fbbfea88"
 
 body-parser@^1.17.1:
   version "1.17.2"
@@ -435,7 +435,7 @@ breakable@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/breakable/-/breakable-1.0.0.tgz#784a797915a38ead27bad456b5572cb4bbaa78c1"
 
-brorand@^1.0.1:
+brorand@^1.0.1, brorand@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/brorand/-/brorand-1.1.0.tgz#12c25efe40a45e3c323eb8675a0a0ce57b22371f"
 
@@ -1361,16 +1361,16 @@ ejs@^2.5.6, ejs@~2.5.3:
   resolved "https://registry.yarnpkg.com/ejs/-/ejs-2.5.6.tgz#479636bfa3fe3b1debd52087f0acb204b4f19c88"
 
 elliptic@^6.0.0:
-  version "6.4.0"
-  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.4.0.tgz#cac9af8762c85836187003c8dfe193e5e2eae5df"
+  version "6.5.4"
+  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.5.4.tgz#da37cebd31e79a1367e941b592ed1fbebd58abbb"
   dependencies:
-    bn.js "^4.4.0"
-    brorand "^1.0.1"
+    bn.js "^4.11.9"
+    brorand "^1.1.0"
     hash.js "^1.0.0"
-    hmac-drbg "^1.0.0"
-    inherits "^2.0.1"
-    minimalistic-assert "^1.0.0"
-    minimalistic-crypto-utils "^1.0.0"
+    hmac-drbg "^1.0.1"
+    inherits "^2.0.4"
+    minimalistic-assert "^1.0.1"
+    minimalistic-crypto-utils "^1.0.1"
 
 encodeurl@~1.0.1:
   version "1.0.1"
@@ -1532,9 +1532,9 @@ expand-range@^1.8.1:
   dependencies:
     fill-range "^2.1.0"
 
-express-rate-limit@latest:
-  version "2.8.0"
-  resolved "https://registry.yarnpkg.com/express-rate-limit/-/express-rate-limit-2.8.0.tgz#678ea64fe339b5d7c64c4df81538bb12a5ef1cc4"
+express-rate-limit@^2.8.0:
+  version "2.14.2"
+  resolved "https://registry.yarnpkg.com/express-rate-limit/-/express-rate-limit-2.14.2.tgz#d1effcdddc7cd36ba91ef71da3cc737d037a6ec2"
   dependencies:
     defaults "^1.0.3"
 
@@ -2178,11 +2178,11 @@ hash-base@^2.0.0:
     inherits "^2.0.1"
 
 hash.js@^1.0.0, hash.js@^1.0.3:
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/hash.js/-/hash.js-1.1.3.tgz#340dedbe6290187151c1ea1d777a3448935df846"
+  version "1.1.7"
+  resolved "https://registry.yarnpkg.com/hash.js/-/hash.js-1.1.7.tgz#0babca538e8d4ee4a0f8988d68866537a003cf42"
   dependencies:
     inherits "^2.0.3"
-    minimalistic-assert "^1.0.0"
+    minimalistic-assert "^1.0.1"
 
 hawk@1.1.1:
   version "1.1.1"
@@ -2211,7 +2211,7 @@ hawk@~3.1.3:
     hoek "2.x.x"
     sntp "1.x.x"
 
-hmac-drbg@^1.0.0:
+hmac-drbg@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/hmac-drbg/-/hmac-drbg-1.0.1.tgz#d2745701025a6c775a6c545793ed502fc0c649a1"
   dependencies:
@@ -2338,14 +2338,18 @@ inflight@^1.0.4:
     once "^1.3.0"
     wrappy "1"
 
-inherits@2, inherits@2.0.3, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.0, inherits@~2.0.1, inherits@~2.0.3:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
+inherits@2, inherits@^2.0.1, inherits@^2.0.3, inherits@^2.0.4, inherits@~2.0.0, inherits@~2.0.1, inherits@~2.0.3:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.4.tgz#0fa2c64f932917c3433a0ded55363aae37416b7c"
 
 inherits@2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.1.tgz#b17d08d326b4423e568eff719f91b0b1cbdf69f1"
 
+inherits@2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
+
 ini@^1.3.4, ini@~1.3.0:
   version "1.3.4"
   resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.4.tgz#0537cb79daf59b59a1a517dff706c86ec039162e"
@@ -2674,9 +2678,9 @@ jsprim@^1.2.2:
     json-schema "0.2.3"
     verror "1.3.6"
 
-jwt-simple@latest:
-  version "0.5.1"
-  resolved "https://registry.yarnpkg.com/jwt-simple/-/jwt-simple-0.5.1.tgz#79ea01891b61de6b68e13e67c0b4b5bda937b294"
+jwt-simple@^0.5.1:
+  version "0.5.6"
+  resolved "https://registry.yarnpkg.com/jwt-simple/-/jwt-simple-0.5.6.tgz#3357adec55b26547114157be66748995b75b333a"
 
 kareem@1.4.1:
   version "1.4.1"
@@ -3020,11 +3024,11 @@ mime@~1.2.11:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/mime/-/mime-1.2.11.tgz#58203eed86e3a5ef17aed2b7d9ebd47f0a60dd10"
 
-minimalistic-assert@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/minimalistic-assert/-/minimalistic-assert-1.0.0.tgz#702be2dda6b37f4836bcb3f5db56641b64a1d3d3"
+minimalistic-assert@^1.0.0, minimalistic-assert@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/minimalistic-assert/-/minimalistic-assert-1.0.1.tgz#2e194de044626d4a10e7f7fbc00ce73e83e4d5c7"
 
-minimalistic-crypto-utils@^1.0.0, minimalistic-crypto-utils@^1.0.1:
+minimalistic-crypto-utils@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/minimalistic-crypto-utils/-/minimalistic-crypto-utils-1.0.1.tgz#f6c00c1c0b082246e5c4d99dfb8c7c083b2b582a"
 
@@ -3368,9 +3372,9 @@ oauth-sign@~0.8.1:
   version "0.8.2"
   resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.8.2.tgz#46a6ab7f0aead8deae9ec0565780b7d4efeb9d43"
 
-oauth2orize@latest:
-  version "1.8.0"
-  resolved "https://registry.yarnpkg.com/oauth2orize/-/oauth2orize-1.8.0.tgz#f2ddc0115d635d0480746249c00f0ea1a9c51ba8"
+oauth2orize@^1.8.0:
+  version "1.11.0"
+  resolved "https://registry.yarnpkg.com/oauth2orize/-/oauth2orize-1.11.0.tgz#793cef251d45ebdeac32ae40a8b6814faab1d483"
   dependencies:
     debug "2.x.x"
     uid2 "0.0.x"
@@ -3530,13 +3534,13 @@ parseurl@^1.3.1, parseurl@~1.3.0, parseurl@~1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/parseurl/-/parseurl-1.3.1.tgz#c8ab8c9223ba34888aa64a297b28853bec18da56"
 
-passport-http-bearer@latest:
+passport-http-bearer@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/passport-http-bearer/-/passport-http-bearer-1.0.1.tgz#147469ea3669e2a84c6167ef99dbb77e1f0098a8"
   dependencies:
     passport-strategy "1.x.x"
 
-passport-http@latest:
+passport-http@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/passport-http/-/passport-http-0.3.0.tgz#8ee53d4380be9c60df2151925029826f77115603"
   dependencies:
@@ -3853,12 +3857,12 @@ range-parser@^1.2.0, range-parser@~1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.0.tgz#f49be6b487894ddc40dcc94a322f611092e00d5e"
 
-rate-limit-redis@latest:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/rate-limit-redis/-/rate-limit-redis-1.1.0.tgz#0da453f24714093cdb6af3568bbb35256b1e9911"
+rate-limit-redis@^1.1.0:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/rate-limit-redis/-/rate-limit-redis-1.7.0.tgz#7bf9d9b502d26b2ceb55ecb2801d6bc82ee99765"
   dependencies:
     defaults "^1.0.3"
-    redis "^2.6.0-2"
+    redis "^2.8.0"
 
 raw-body@~2.1.5:
   version "2.1.7"
@@ -4027,11 +4031,11 @@ redis-commands@^1.2.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/redis-commands/-/redis-commands-1.3.1.tgz#81d826f45fa9c8b2011f4cd7a0fe597d241d442b"
 
-redis-parser@^2.5.0:
+redis-parser@^2.5.0, redis-parser@^2.6.0:
   version "2.6.0"
   resolved "https://registry.yarnpkg.com/redis-parser/-/redis-parser-2.6.0.tgz#52ed09dacac108f1a631c07e9b69941e7a19504b"
 
-redis@^2.1.0, redis@^2.6.0-2, redis@latest:
+redis@^2.1.0:
   version "2.7.1"
   resolved "https://registry.yarnpkg.com/redis/-/redis-2.7.1.tgz#7d56f7875b98b20410b71539f1d878ed58ebf46a"
   dependencies:
@@ -4039,6 +4043,14 @@ redis@^2.1.0, redis@^2.6.0-2, redis@latest:
     redis-commands "^1.2.0"
     redis-parser "^2.5.0"
 
+redis@^2.7.1, redis@^2.8.0:
+  version "2.8.0"
+  resolved "https://registry.yarnpkg.com/redis/-/redis-2.8.0.tgz#202288e3f58c49f6079d97af7a10e1303ae14b02"
+  dependencies:
+    double-ended-queue "^2.1.0-0"
+    redis-commands "^1.2.0"
+    redis-parser "^2.6.0"
+
 regenerator-runtime@^0.10.0:
   version "0.10.5"
   resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.10.5.tgz#336c3efc1220adcedda2c9fab67b5a7955a33658"