diff --git a/package.json b/package.json
index 6f1d49681ac22d33ad8d594dda459d54e2da240c..f0c74ca5ee61b9f2d61890e7373a3f38c80d70d0 100644
--- a/package.json
+++ b/package.json
@@ -70,7 +70,6 @@
     "errorhandler": "1.5.0",
     "event-stream": "3.3.4",
     "express": "4.15.2",
-    "express-cors": "0.0.3",
     "express-fileupload": "0.0.5",
     "heapdump": "^0.3.9",
     "inquirer": "3.0.6",
@@ -90,9 +89,7 @@
     "scryptb": "6.0.4",
     "seedrandom": "^2.4.3",
     "sha1": "1.1.1",
-    "spawn-sync": "^1.0.15",
     "sqlite3": "3.1.4",
-    "superagent": "3.5.2",
     "tail": "^1.2.1",
     "tweetnacl": "0.14.3",
     "underscore": "1.8.3",
diff --git a/yarn.lock b/yarn.lock
index 61123be1f30970689030ca97a3fcb3875e7e1a8d..22b09d546a004254ba0b759fb8613f94b252daae 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7,8 +7,8 @@
   resolved "https://registry.yarnpkg.com/@types/mocha/-/mocha-2.2.41.tgz#e27cf0817153eb9f2713b2d3f6c68f1e1c3ca608"
 
 "@types/node@^8.0.9":
-  version "8.0.16"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-8.0.16.tgz#5aa51abd72621a0ce53fb86bccd76825ee1b4ca9"
+  version "8.0.17"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-8.0.17.tgz#677bc8c118cfb76013febb62ede1f31d2c7222a1"
 
 "@types/should@^8.3.0":
   version "8.3.0"
@@ -281,8 +281,8 @@ babel-messages@^6.23.0:
     babel-runtime "^6.22.0"
 
 babel-runtime@^6.22.0:
-  version "6.23.0"
-  resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.23.0.tgz#0a9489f144de70efb3ce4300accdb329e2fc543b"
+  version "6.25.0"
+  resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.25.0.tgz#33b98eaa5d482bb01a8d1aa6b437ad2b01aec41c"
   dependencies:
     core-js "^2.4.0"
     regenerator-runtime "^0.10.0"
@@ -660,7 +660,7 @@ concat-map@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
 
-concat-stream@^1.4.6, concat-stream@^1.4.7:
+concat-stream@^1.4.6:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.0.tgz#0aac662fd52be78964d5532f694784e70110acf7"
   dependencies:
@@ -1208,10 +1208,6 @@ expand-range@^1.8.1:
   dependencies:
     fill-range "^2.1.0"
 
-express-cors@0.0.3:
-  version v0.0.3
-  resolved "https://registry.yarnpkg.com/express-cors/-/express-cors-0.0.3.tgz#5c25a78d7be69a4fcb08412cb27c8dfc758896bd"
-
 express-fileupload@0.0.5:
   version "0.0.5"
   resolved "https://registry.yarnpkg.com/express-fileupload/-/express-fileupload-0.0.5.tgz#433a712525afa98b4c93162522e8bf79c68d82e7"
@@ -2732,10 +2728,6 @@ os-locale@^2.0.0:
     lcid "^1.0.0"
     mem "^1.1.0"
 
-os-shim@^0.1.2:
-  version "0.1.3"
-  resolved "https://registry.yarnpkg.com/os-shim/-/os-shim-0.1.3.tgz#6b62c3791cf7909ea35ed46e17658bb417cb3917"
-
 os-tmpdir@^1.0.0, os-tmpdir@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
@@ -3184,8 +3176,8 @@ resolve-from@^2.0.0:
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-2.0.0.tgz#9480ab20e94ffa1d9e80a804c7ea147611966b57"
 
 resolve@^1.1.6:
-  version "1.3.3"
-  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.3.3.tgz#655907c3469a8680dc2de3a275a8fdd69691f0e5"
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.4.0.tgz#a75be01c53da25d934a98ebd0e4c4a7312f92a86"
   dependencies:
     path-parse "^1.0.5"
 
@@ -3440,13 +3432,6 @@ source-map@~0.1.33:
   dependencies:
     amdefine ">=0.0.4"
 
-spawn-sync@^1.0.15:
-  version "1.0.15"
-  resolved "https://registry.yarnpkg.com/spawn-sync/-/spawn-sync-1.0.15.tgz#b00799557eb7fb0c8376c29d44e8a1ea67e57476"
-  dependencies:
-    concat-stream "^1.4.7"
-    os-shim "^0.1.2"
-
 spawn-wrap@^1.3.8:
   version "1.3.8"
   resolved "https://registry.yarnpkg.com/spawn-wrap/-/spawn-wrap-1.3.8.tgz#fa2a79b990cbb0bb0018dca6748d88367b19ec31"
@@ -3598,7 +3583,7 @@ strip-json-comments@~1.0.1:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-1.0.4.tgz#1e15fbcac97d3ee99bf2d73b4c656b082bbafb91"
 
-superagent@3.5.2, superagent@^3.0.0:
+superagent@^3.0.0:
   version "3.5.2"
   resolved "https://registry.yarnpkg.com/superagent/-/superagent-3.5.2.tgz#3361a3971567504c351063abeaae0faa23dbf3f8"
   dependencies: