diff --git a/package.json b/package.json
index d8a910d73..4960f020d 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
     "@types/express": "4.11.1",
     "@types/node": "9.4.6",
     "chai": "4.1.2",
-    "chai-http": "3.0.0",
+    "chai-http": "4.3.0",
     "coveralls": "3.0.0",
     "cucumber": "3.2.1",
     "cucumber-html-reporter": "4.0.1",
diff --git a/yarn.lock b/yarn.lock
index 36b14dfb6..406ef2cf8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -79,10 +79,18 @@
   version "4.0.10"
   resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.0.10.tgz#0eb222c7353adde8e0980bea04165d4d3b6afef3"
 
+"@types/chai@4":
+  version "4.1.7"
+  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.1.7.tgz#1b8e33b61a8c09cbe1f85133071baa0dbf9fa71a"
+
 "@types/chai@4.1.2":
   version "4.1.2"
   resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.1.2.tgz#f1af664769cfb50af805431c407425ed619daa21"
 
+"@types/cookiejar@*":
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/@types/cookiejar/-/cookiejar-2.1.1.tgz#90b68446364baf9efd8e8349bb36bd3852b75b80"
+
 "@types/cucumber@3.2.2":
   version "3.2.2"
   resolved "https://registry.yarnpkg.com/@types/cucumber/-/cucumber-3.2.2.tgz#4707983d840e8d09885d400d770e33ff06eeb2a2"
@@ -134,6 +142,13 @@
   dependencies:
     "@types/node" "*"
 
+"@types/superagent@^3.8.3":
+  version "3.8.7"
+  resolved "https://registry.yarnpkg.com/@types/superagent/-/superagent-3.8.7.tgz#1f1ed44634d5459b3a672eb7235a8e7cfd97704c"
+  dependencies:
+    "@types/cookiejar" "*"
+    "@types/node" "*"
+
 JSONStream@^1.0.4:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/JSONStream/-/JSONStream-1.3.2.tgz#c102371b6ec3a7cf3b847ca00c20bb0fce4c6dea"
@@ -299,7 +314,7 @@ assertion-error@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/assertion-error/-/assertion-error-1.0.2.tgz#13ca515d86206da0bac66e834dd397d87581094c"
 
-async@^1.4.0, async@^1.5.2:
+async@^1.4.0:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
 
@@ -503,15 +518,17 @@ center-align@^0.1.1:
     align-text "^0.1.3"
     lazy-cache "^1.0.3"
 
-chai-http@3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/chai-http/-/chai-http-3.0.0.tgz#5460d8036e1f1a12b0b5b5cbd529e6dc1d31eb4b"
+chai-http@4.3.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/chai-http/-/chai-http-4.3.0.tgz#3c37c675c1f4fe685185a307e345de7599337c1a"
   dependencies:
-    cookiejar "2.0.x"
-    is-ip "1.0.0"
+    "@types/chai" "4"
+    "@types/superagent" "^3.8.3"
+    cookiejar "^2.1.1"
+    is-ip "^2.0.0"
     methods "^1.1.2"
-    qs "^6.2.0"
-    superagent "^2.0.0"
+    qs "^6.5.1"
+    superagent "^3.7.0"
 
 chai@4.1.2:
   version "4.1.2"
@@ -604,6 +621,12 @@ combined-stream@^1.0.5, combined-stream@~1.0.5:
   dependencies:
     delayed-stream "~1.0.0"
 
+combined-stream@^1.0.6:
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.7.tgz#2d1d24317afb8abe95d6d2c0b07b57813539d828"
+  dependencies:
+    delayed-stream "~1.0.0"
+
 commander@^2.11.0, commander@^2.9.0:
   version "2.12.2"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.12.2.tgz#0f5946c427ed9ec0d91a46bb9def53e54650e555"
@@ -707,13 +730,9 @@ cookie@0.3.1:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.3.1.tgz#e7e0a1f9ef43b4c8ba925c5c5a96e806d16873bb"
 
-cookiejar@2.0.x:
-  version "2.0.6"
-  resolved "https://registry.yarnpkg.com/cookiejar/-/cookiejar-2.0.6.tgz#0abf356ad00d1c5a219d88d44518046dd026acfe"
-
-cookiejar@^2.0.6:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/cookiejar/-/cookiejar-2.1.1.tgz#41ad57b1b555951ec171412a81942b1e8200d34a"
+cookiejar@^2.1.0, cookiejar@^2.1.1:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/cookiejar/-/cookiejar-2.1.2.tgz#dd8a235530752f988f9a0844f3fc589e3111125c"
 
 core-js@^2.4.0:
   version "2.5.3"
@@ -850,7 +869,7 @@ debug-log@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/debug-log/-/debug-log-1.0.1.tgz#2307632d4c04382b8df8a32f70b895046d52745f"
 
-debug@2.6.9, debug@^2.2.0, debug@^2.6.8:
+debug@2.6.9, debug@^2.6.8:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
   dependencies:
@@ -1215,13 +1234,13 @@ forever-agent@~0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/forever-agent/-/forever-agent-0.6.1.tgz#fbc71f0c41adeb37f96c577ad1ed42d8fdacca91"
 
-form-data@1.0.0-rc4:
-  version "1.0.0-rc4"
-  resolved "https://registry.yarnpkg.com/form-data/-/form-data-1.0.0-rc4.tgz#05ac6bc22227b43e4461f488161554699d4f8b5e"
+form-data@^2.3.1:
+  version "2.3.3"
+  resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.3.3.tgz#dcce52c05f644f298c6a7ab936bd724ceffbf3a6"
   dependencies:
-    async "^1.5.2"
-    combined-stream "^1.0.5"
-    mime-types "^2.1.10"
+    asynckit "^0.4.0"
+    combined-stream "^1.0.6"
+    mime-types "^2.1.12"
 
 form-data@~2.3.1:
   version "2.3.1"
@@ -1231,9 +1250,9 @@ form-data@~2.3.1:
     combined-stream "^1.0.5"
     mime-types "^2.1.12"
 
-formidable@^1.0.17:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/formidable/-/formidable-1.1.1.tgz#96b8886f7c3c3508b932d6bd70c4d3a88f35f1a9"
+formidable@^1.2.0:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/formidable/-/formidable-1.2.1.tgz#70fb7ca0290ee6ff961090415f4b3df3d2082659"
 
 forwarded@~0.1.2:
   version "0.1.2"
@@ -1531,9 +1550,9 @@ invert-kv@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-1.0.0.tgz#104a8e4aaca6d3d8cd157a8ef8bfab2d7a3ffdb6"
 
-ip-regex@^1.0.0:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/ip-regex/-/ip-regex-1.0.3.tgz#dc589076f659f419c222039a33316f1c7387effd"
+ip-regex@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/ip-regex/-/ip-regex-2.1.0.tgz#fa78bf5d2e6913c911ce9f819ee5146bb6d844e9"
 
 ipaddr.js@1.5.2:
   version "1.5.2"
@@ -1601,11 +1620,11 @@ is-glob@^2.0.0, is-glob@^2.0.1:
   dependencies:
     is-extglob "^1.0.0"
 
-is-ip@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/is-ip/-/is-ip-1.0.0.tgz#2bb6959f797ccd6f9fdc812758bcbc87c4c59074"
+is-ip@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/is-ip/-/is-ip-2.0.0.tgz#68eea07e8a0a0a94c2d080dd674c731ab2a461ab"
   dependencies:
-    ip-regex "^1.0.0"
+    ip-regex "^2.0.0"
 
 is-number@^2.1.0:
   version "2.1.0"
@@ -1977,7 +1996,7 @@ mime-db@~1.30.0:
   version "1.30.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.30.0.tgz#74c643da2dd9d6a45399963465b26d5ca7d71f01"
 
-mime-types@^2.1.10, mime-types@^2.1.12, mime-types@~2.1.15, mime-types@~2.1.16, mime-types@~2.1.17:
+mime-types@^2.1.12, mime-types@~2.1.15, mime-types@~2.1.16, mime-types@~2.1.17:
   version "2.1.17"
   resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.17.tgz#09d7a393f03e995a79f8af857b70a9e0ab16557a"
   dependencies:
@@ -1987,7 +2006,7 @@ mime@1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/mime/-/mime-1.4.1.tgz#121f9ebc49e3766f311a76e1fa1c8003c4b03aa6"
 
-mime@^1.3.4:
+mime@^1.4.1:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/mime/-/mime-1.6.0.tgz#32cd9e5c64553bd58d19a568af452acff04981b1"
 
@@ -2368,6 +2387,10 @@ process-nextick-args@~1.0.6:
   version "1.0.7"
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-1.0.7.tgz#150e20b756590ad3f91093f25a4f2ad8bff30ba3"
 
+process-nextick-args@~2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.0.tgz#a37d732f4271b4ab1ad070d35508e8290788ffaa"
+
 progress@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/progress/-/progress-2.0.0.tgz#8a1be366bf8fc23db2bd23f10c6fe920b4389d1f"
@@ -2403,10 +2426,14 @@ q@^1.4.1:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/q/-/q-1.5.1.tgz#7e32f75b41381291d04611f1bf14109ac00651d7"
 
-qs@6.5.1, qs@^6.1.0, qs@^6.2.0, qs@~6.5.1:
+qs@6.5.1, qs@~6.5.1:
   version "6.5.1"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.1.tgz#349cdf6eef89ec45c12d7d5eb3fc0c870343a6d8"
 
+qs@^6.5.1:
+  version "6.7.0"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.7.0.tgz#41dc1a015e3d581f1621776be31afb2876a9b1bc"
+
 randomatic@^1.1.3:
   version "1.1.7"
   resolved "https://registry.yarnpkg.com/randomatic/-/randomatic-1.1.7.tgz#c7abe9cc8b87c0baa876b19fde83fd464797e38c"
@@ -2466,7 +2493,7 @@ read-pkg@^3.0.0:
     normalize-package-data "^2.3.2"
     path-type "^3.0.0"
 
-readable-stream@^2.0.0, readable-stream@^2.0.2, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2:
+readable-stream@^2.0.0, readable-stream@^2.0.2, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.3.tgz#368f2512d79f9d46fdfc71349ae7878bbc1eb95c"
   dependencies:
@@ -2478,6 +2505,18 @@ readable-stream@^2.0.0, readable-stream@^2.0.2, readable-stream@^2.0.5, readable
     string_decoder "~1.0.3"
     util-deprecate "~1.0.1"
 
+readable-stream@^2.3.5:
+  version "2.3.6"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
+  dependencies:
+    core-util-is "~1.0.0"
+    inherits "~2.0.3"
+    isarray "~1.0.0"
+    process-nextick-args "~2.0.0"
+    safe-buffer "~5.1.1"
+    string_decoder "~1.1.1"
+    util-deprecate "~1.0.1"
+
 redent@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/redent/-/redent-1.0.0.tgz#cf916ab1fd5f1f16dfb20822dd6ec7f730c2afde"
@@ -2866,6 +2905,12 @@ string_decoder@~1.0.3:
   dependencies:
     safe-buffer "~5.1.0"
 
+string_decoder@~1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.1.1.tgz#9cf1611ba62685d7030ae9e4ba34149c3af03fc8"
+  dependencies:
+    safe-buffer "~5.1.0"
+
 stringstream@~0.0.5:
   version "0.0.5"
   resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.5.tgz#4e484cd4de5a0bbbee18e46307710a8a81621878"
@@ -2906,20 +2951,20 @@ strip-json-comments@~2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
 
-superagent@^2.0.0:
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/superagent/-/superagent-2.3.0.tgz#703529a0714e57e123959ddefbce193b2e50d115"
+superagent@^3.7.0:
+  version "3.8.3"
+  resolved "https://registry.yarnpkg.com/superagent/-/superagent-3.8.3.tgz#460ea0dbdb7d5b11bc4f78deba565f86a178e128"
   dependencies:
     component-emitter "^1.2.0"
-    cookiejar "^2.0.6"
-    debug "^2.2.0"
+    cookiejar "^2.1.0"
+    debug "^3.1.0"
     extend "^3.0.0"
-    form-data "1.0.0-rc4"
-    formidable "^1.0.17"
+    form-data "^2.3.1"
+    formidable "^1.2.0"
     methods "^1.1.1"
-    mime "^1.3.4"
-    qs "^6.1.0"
-    readable-stream "^2.0.5"
+    mime "^1.4.1"
+    qs "^6.5.1"
+    readable-stream "^2.3.5"
 
 supports-color@^2.0.0:
   version "2.0.0"