diff --git a/Server/package.json b/Server/package.json
index 5a7d8c4..907b899 100644
--- a/Server/package.json
+++ b/Server/package.json
@@ -18,7 +18,7 @@
     "eslint-config-standard": "^12.0.0",
     "glob": "^7.1.3",
     "immutable": "^4.0.0-rc.12",
-    "koa": "^2.7.0",
+    "koa": "^2.11.0",
     "koa-better-router": "^2.1.1",
     "koa-bodyparser": "^4.2.1",
     "koa-compress": "^3.0.0",
diff --git a/Server/yarn.lock b/Server/yarn.lock
index 42e8fd0..0382c3a 100644
--- a/Server/yarn.lock
+++ b/Server/yarn.lock
@@ -702,13 +702,13 @@ cookiejar@^2.1.2:
   resolved "https://registry.yarnpkg.com/cookiejar/-/cookiejar-2.1.2.tgz#dd8a235530752f988f9a0844f3fc589e3111125c"
   integrity sha512-Mw+adcfzPxcPeI+0WlvRrr/3lGVO0bD75SxX6811cxSh1Wbxx7xZBGK1eVtDf6si8rg2lhnUjsVLMFMfbRIuwA==
 
-cookies@~0.7.1:
-  version "0.7.2"
-  resolved "https://registry.yarnpkg.com/cookies/-/cookies-0.7.2.tgz#52736976126658af7713d7f858f7d21f99dab486"
-  integrity sha512-J2JjH9T3PUNKPHknprxgCrCaZshIfxW2j49gq1E1CP5Micj1LppWAR2y9EHSQAzEiX84zOsScWNwUZ0b/ChlMw==
+cookies@~0.8.0:
+  version "0.8.0"
+  resolved "https://registry.yarnpkg.com/cookies/-/cookies-0.8.0.tgz#1293ce4b391740a8406e3c9870e828c4b54f3f90"
+  integrity sha512-8aPsApQfebXnuI+537McwYsDtjVxGm8gTIzQI3FDW6t5t/DAhERxtnbEPN/8RX+uZthoz4eCOgloXaE5cYyNow==
   dependencies:
-    depd "~1.1.2"
-    keygrip "~1.0.2"
+    depd "~2.0.0"
+    keygrip "~1.1.0"
 
 copy-descriptor@^0.1.0:
   version "0.1.1"
@@ -868,6 +868,11 @@ depd@^1.1.2, depd@~1.1.2:
   resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.2.tgz#9bcd52e14c097763e749b274c4346ed2e560b5a9"
   integrity sha1-m81S4UwJd2PnSbJ0xDRu0uVgtak=
 
+depd@~2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/depd/-/depd-2.0.0.tgz#b696163cc757560d09cf22cc8fad1571b79e76df"
+  integrity sha512-g7nH6P6dyDioJogAAGprGpCtVImJhpPk/roCzdb3fIh61/s/nPsfR6onyMwkCAR/OlC3yBC0lESvUoQEAssIrw==
+
 destroy@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/destroy/-/destroy-1.0.4.tgz#978857442c44749e4206613e37946205826abd80"
@@ -923,6 +928,11 @@ emoji-regex@^7.0.1:
   resolved "https://registry.yarnpkg.com/emoji-regex/-/emoji-regex-7.0.3.tgz#933a04052860c85e83c122479c4748a8e4c72156"
   integrity sha512-CwBLREIQ7LvYFB0WyRvwhq5N5qPhc6PMjD6bYggFlI5YyDgl+0vxq5VHbMOFqLg7hfWzmu8T5Z1QofhmTIhItA==
 
+encodeurl@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
+  integrity sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k=
+
 engine.io-client@~3.3.1:
   version "3.3.1"
   resolved "https://registry.yarnpkg.com/engine.io-client/-/engine.io-client-3.3.1.tgz#afedb4a07b2ea48b7190c3136bfea98fdd4f0f03"
@@ -1928,10 +1938,12 @@ json-stable-stringify-without-jsonify@^1.0.1:
   resolved "https://registry.yarnpkg.com/json-stable-stringify-without-jsonify/-/json-stable-stringify-without-jsonify-1.0.1.tgz#9db7b59496ad3f3cfef30a75142d2d930ad72651"
   integrity sha1-nbe1lJatPzz+8wp1FC0tkwrXJlE=
 
-keygrip@~1.0.2:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/keygrip/-/keygrip-1.0.3.tgz#399d709f0aed2bab0a059e0cdd3a5023a053e1dc"
-  integrity sha512-/PpesirAIfaklxUzp4Yb7xBper9MwP6hNRA6BGGUFCgbJ+BM5CKBtsoxinNXkLHAr+GXS1/lSlF2rP7cv5Fl+g==
+keygrip@~1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/keygrip/-/keygrip-1.1.0.tgz#871b1681d5e159c62a445b0c74b615e0917e7226"
+  integrity sha512-iYSchDJ+liQ8iwbSI2QqsQOvqv58eJCEanyJPJi+Khyu8smkcKSFUCbPwzFcL7YVtZ6eONjqRX/38caJ7QjRAQ==
+  dependencies:
+    tsscmp "1.0.6"
 
 kind-of@^3.0.2, kind-of@^3.0.3, kind-of@^3.2.0:
   version "3.2.2"
@@ -2041,20 +2053,21 @@ koa-static@^5.0.0:
     debug "^3.1.0"
     koa-send "^5.0.0"
 
-koa@^2.7.0:
-  version "2.7.0"
-  resolved "https://registry.yarnpkg.com/koa/-/koa-2.7.0.tgz#7e00843506942b9d82c6cc33749f657c6e5e7adf"
-  integrity sha512-7ojD05s2Q+hFudF8tDLZ1CpCdVZw8JQELWSkcfG9bdtoTDzMmkRF6BQBU7JzIzCCOY3xd3tftiy/loHBUYaY2Q==
+koa@^2.11.0:
+  version "2.11.0"
+  resolved "https://registry.yarnpkg.com/koa/-/koa-2.11.0.tgz#fe5a51c46f566d27632dd5dc8fd5d7dd44f935a4"
+  integrity sha512-EpR9dElBTDlaDgyhDMiLkXrPwp6ZqgAIBvhhmxQ9XN4TFgW+gEz6tkcsNI6BnUbUftrKDjVFj4lW2/J2aNBMMA==
   dependencies:
     accepts "^1.3.5"
     cache-content-type "^1.0.0"
     content-disposition "~0.5.2"
     content-type "^1.0.4"
-    cookies "~0.7.1"
+    cookies "~0.8.0"
     debug "~3.1.0"
     delegates "^1.0.0"
     depd "^1.1.2"
     destroy "^1.0.4"
+    encodeurl "^1.0.2"
     error-inject "^1.0.0"
     escape-html "^1.0.3"
     fresh "~0.5.2"
@@ -2063,7 +2076,6 @@ koa@^2.7.0:
     is-generator-function "^1.0.7"
     koa-compose "^4.1.0"
     koa-convert "^1.2.0"
-    koa-is-json "^1.0.0"
     on-finished "^2.3.0"
     only "~0.0.2"
     parseurl "^1.3.2"
@@ -3579,6 +3591,11 @@ tslib@1.9.3, tslib@^1.9.0:
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.9.3.tgz#d7e4dd79245d85428c4d7e4822a79917954ca286"
   integrity sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ==
 
+tsscmp@1.0.6:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/tsscmp/-/tsscmp-1.0.6.tgz#85b99583ac3589ec4bfef825b5000aa911d605eb"
+  integrity sha512-LxhtAkPDTkVCMQjt2h6eBVY28KCjikZqZfMcC15YBeNjkgUpdCfBu5HoiOTDu86v6smE8yOjyEktJ8hlbANHQA==
+
 tv4@^1.3:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/tv4/-/tv4-1.3.0.tgz#d020c846fadd50c855abb25ebaecc68fc10f7963"