diff --git a/server/package.json b/server/package.json
index 99056d8..299d859 100644
--- a/server/package.json
+++ b/server/package.json
@@ -22,5 +22,8 @@
   },
   "devDependencies": {
     "nodemon": "^2.0.4"
+  },
+  "resolutions": {
+    "constantinople": "3.1.1"
   }
 }
diff --git a/server/yarn.lock b/server/yarn.lock
index e71c0f8..bb38318 100644
--- a/server/yarn.lock
+++ b/server/yarn.lock
@@ -14,6 +14,18 @@
   dependencies:
     defer-to-connect "^1.0.1"
 
+"@types/babel-types@*":
+  version "7.0.16"
+  resolved "https://registry.yarnpkg.com/@types/babel-types/-/babel-types-7.0.16.tgz#74916c1b7a6bd53dc3d3f4053b65126bcc5e8e6f"
+  integrity sha512-5QXs9GBFTNTmilLlWBhnsprqpjfrotyrnzUdwDrywEL/DA4LuCWQT300BTOXA3Y9ngT9F2uvmCoIxI6z8DlJEA==
+
+"@types/babylon@^6.16.2":
+  version "6.16.9"
+  resolved "https://registry.yarnpkg.com/@types/babylon/-/babylon-6.16.9.tgz#7abf03f6591a921fe3171af91433077cd2666e36"
+  integrity sha512-sEKyxMVEowhcr8WLfN0jJYe4gS4Z9KC2DGz0vqfC7+MXFbmvOF7jSjALC77thvAO2TLgFUPa9vDeOak+AcUrZA==
+  dependencies:
+    "@types/babel-types" "*"
+
 "@types/color-name@^1.1.1":
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/@types/color-name/-/color-name-1.1.1.tgz#1c1261bbeaa10a8055bbc5d8ab84b7b2afc846a0"
@@ -128,6 +140,38 @@ axios@^0.19.2:
   dependencies:
     follow-redirects "1.5.10"
 
+babel-runtime@^6.11.6, babel-runtime@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.26.0.tgz#965c7058668e82b55d7bfe04ff2337bc8b5647fe"
+  integrity sha512-ITKNuq2wKlW1fJg9sSW52eepoYgZBggvOAHC0u/CYu/qxQ9EVzThCgR69BnSXLHjy2f7SY5zaQ4yt7H9ZVxY2g==
+  dependencies:
+    core-js "^2.4.0"
+    regenerator-runtime "^0.11.0"
+
+babel-types@^6.15.0, babel-types@^6.16.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-types/-/babel-types-6.26.0.tgz#a3b073f94ab49eb6fa55cd65227a334380632497"
+  integrity sha512-zhe3V/26rCWsEZK8kZN+HaQj5yQ1CilTObixFzKW1UWjqG7618Twz6YEsCnjfg5gBcJh02DrpCkS9h98ZqDY+g==
+  dependencies:
+    babel-runtime "^6.26.0"
+    esutils "^2.0.2"
+    lodash "^4.17.4"
+    to-fast-properties "^1.0.3"
+
+babylon-walk@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/babylon-walk/-/babylon-walk-1.0.2.tgz#3b15a5ddbb482a78b4ce9c01c8ba181702d9d6ce"
+  integrity sha512-/AcxC8CZ6YzmKNfiH3+XLjJDbhED3qxSrd4uFNvJ91pcsPuwMNXxfjwHxhiYOidhpis0BiBu/gupOdv2EYyglg==
+  dependencies:
+    babel-runtime "^6.11.6"
+    babel-types "^6.15.0"
+    lodash.clone "^4.5.0"
+
+babylon@^6.18.0:
+  version "6.18.0"
+  resolved "https://registry.yarnpkg.com/babylon/-/babylon-6.18.0.tgz#af2f3b88fa6f5c1e4c634d1a0f8eac4f55b395e3"
+  integrity sha512-q/UEjfGJ2Cm3oKV71DJz9d25TPnq5rhBVL2Q4fA5wcC3jcrdn7+SssEybFIxwAvvP+YCsCYNKughoF33GxgycQ==
+
 balanced-match@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
@@ -337,12 +381,15 @@ configstore@^5.0.1:
     write-file-atomic "^3.0.0"
     xdg-basedir "^4.0.0"
 
-constantinople@~3.0.1:
-  version "3.0.2"
-  resolved "https://registry.yarnpkg.com/constantinople/-/constantinople-3.0.2.tgz#4b945d9937907bcd98ee575122c3817516544141"
-  integrity sha1-S5RdmTeQe82Y7ldRIsOBdRZUQUE=
+constantinople@3.1.1, constantinople@~3.0.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/constantinople/-/constantinople-3.1.1.tgz#eaaa48b48aadc5b5c7ad060cc7b59ab862067fa9"
+  integrity sha512-flmdUwXmWehQ0FlJyeHM4uwTXrEmEcX1ZC7+xXaB+uwCF1lw138xf707SjTCuQTudgpF4f6eLmm3tHSuuQtF/Q==
   dependencies:
-    acorn "^2.1.0"
+    "@types/babylon" "^6.16.2"
+    babel-types "^6.16.0"
+    babylon "^6.18.0"
+    babylon-walk "^1.0.2"
 
 content-disposition@0.5.2:
   version "0.5.2"
@@ -377,6 +424,11 @@ cookie@0.4.0:
   resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.4.0.tgz#beb437e7022b3b6d49019d088665303ebe9c14ba"
   integrity sha512-+Hp8fLp57wnUSt0tY0tHEXh4voZRDnoIrZPqlo3DPiI4y9lwg/jqx+1Om94/W6ZaPDOUbnjOt/99w66zk+l1Xg==
 
+core-js@^2.4.0:
+  version "2.6.12"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.12.tgz#d9333dfa7b065e347cc5682219d6f690859cc2ec"
+  integrity sha512-Kb2wC0fvsWfQrgk8HU5lW6U/Lcs8+9aaYcy4ZFc6DDlo4nZ7n70dEgE5rtR0oG6ufKDUnrwfWL1mXR5ljDatrQ==
+
 cors@^2.8.5:
   version "2.8.5"
   resolved "https://registry.yarnpkg.com/cors/-/cors-2.8.5.tgz#eac11da51592dd86b9f06f6e7ac293b3df875d29"
@@ -550,6 +602,11 @@ esprima@~4.0.0:
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.1.tgz#13b04cdb3e6c5d19df91ab6987a8695619b0aa71"
   integrity sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==
 
+esutils@^2.0.2:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.3.tgz#74d2eb4de0b8da1293711910d50775b9b710ef64"
+  integrity sha512-kVscqXk4OCp68SZ0dkgEKVi6/8ij300KBWTJq32P/dYeWTSwK41WyTxalN1eRmA5Z9UU/LX9D7FWSmV9SAYx6g==
+
 etag@~1.8.1:
   version "1.8.1"
   resolved "https://registry.yarnpkg.com/etag/-/etag-1.8.1.tgz#41ae2eeb65efa62268aebfea83ac7d79299b0887"
@@ -928,11 +985,21 @@ lazy-cache@^1.0.3:
   resolved "https://registry.yarnpkg.com/lazy-cache/-/lazy-cache-1.0.4.tgz#a1d78fc3a50474cb80845d3b3b6e1da49a446e8e"
   integrity sha1-odePw6UEdMuAhF07O24dpJpEbo4=
 
+lodash.clone@^4.5.0:
+  version "4.5.0"
+  resolved "https://registry.yarnpkg.com/lodash.clone/-/lodash.clone-4.5.0.tgz#195870450f5a13192478df4bc3d23d2dea1907b6"
+  integrity sha512-GhrVeweiTD6uTmmn5hV/lzgCQhccwReIVRLHp7LT4SopOjqEZ5BbX8b5WWEtAKasjmy8hR7ZPwsYlxRCku5odg==
+
 lodash@^4.17.15:
   version "4.17.19"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
   integrity sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==
 
+lodash@^4.17.4:
+  version "4.18.1"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.18.1.tgz#ff2b66c1f6326d59513de2407bf881439812771c"
+  integrity sha512-dMInicTPVE8d1e5otfwmmjlxkZoUpiVLwyeTdUsi/Caj/gfzzblBcCE5sRHV/AsjuCmxWrte2TNGSYuCeCq+0Q==
+
 long@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/long/-/long-4.0.0.tgz#9a7b71cfb7d361a194ea555241c92f7468d5bf28"
@@ -1281,6 +1348,11 @@ redeyed@~2.1.0:
   dependencies:
     esprima "~4.0.0"
 
+regenerator-runtime@^0.11.0:
+  version "0.11.1"
+  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.11.1.tgz#be05ad7f9bf7d22e056f9726cee5017fbf19e2e9"
+  integrity sha512-MguG95oij0fC3QV3URf4V2SDYGJhJnJGqvIIgdECeODCT98wSWDAJ94SSuVpYQUoTcGUIL6L4yNB7j1DFFHSBg==
+
 registry-auth-token@^4.0.0:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/registry-auth-token/-/registry-auth-token-4.1.1.tgz#40a33be1e82539460f94328b0f7f0f84c16d9479"
@@ -1511,6 +1583,11 @@ term-size@^2.1.0:
   resolved "https://registry.yarnpkg.com/term-size/-/term-size-2.2.0.tgz#1f16adedfe9bdc18800e1776821734086fcc6753"
   integrity sha512-a6sumDlzyHVJWb8+YofY4TW112G6p2FCPEAFk+59gIYHv3XHRhm9ltVQ9kli4hNWeQBwSpe8cRN25x0ROunMOw==
 
+to-fast-properties@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-1.0.3.tgz#b83571fa4d8c25b82e231b06e3a3055de4ca1a47"
+  integrity sha512-lxrWP8ejsq+7E3nNjwYmUBMAgjMTZoTI+sdBOpvNyijeDLa29LUn9QaoXAHv4+Z578hbmHHJKZknzxVtvo77og==
+
 to-readable-stream@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/to-readable-stream/-/to-readable-stream-1.0.0.tgz#ce0aa0c2f3df6adf852efb404a783e77c0475771"