diff --git a/packages/client/package.json b/packages/client/package.json
index ef12c59..9867413 100644
--- a/packages/client/package.json
+++ b/packages/client/package.json
@@ -20,7 +20,7 @@
     "webpack-dev-server": "3.3.1"
   },
   "devDependencies": {
-    "@babel/core": "7.4.3",
+    "@babel/core": "7.9.0",
     "@babel/preset-env": "7.6.2",
     "@babel/preset-react": "7.0.0",
     "babel-loader": "8.0.6",
diff --git a/packages/server/package.json b/packages/server/package.json
index 1706486..4736e0c 100644
--- a/packages/server/package.json
+++ b/packages/server/package.json
@@ -17,7 +17,7 @@
   },
   "dependencies": {
     "@babel/cli": "7.4.3",
-    "@babel/core": "7.4.3",
+    "@babel/core": "7.9.0",
     "@babel/node": "7.2.2",
     "@babel/preset-env": "7.6.2",
     "nodemon": "1.18.11",
diff --git a/yarn.lock b/yarn.lock
index fa0d2ac..0ec52d8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -18,52 +18,38 @@
   optionalDependencies:
     chokidar "^2.0.4"
 
-"@babel/code-frame@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.0.0.tgz#06e2ab19bdb535385559aabb5ba59729482800f8"
-  dependencies:
-    "@babel/highlight" "^7.0.0"
-
-"@babel/code-frame@^7.5.5":
-  version "7.5.5"
-  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.5.5.tgz#bc0782f6d69f7b7d49531219699b988f669a8f9d"
-  dependencies:
-    "@babel/highlight" "^7.0.0"
-
-"@babel/core@7.4.3":
-  version "7.4.3"
-  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.4.3.tgz#198d6d3af4567be3989550d97e068de94503074f"
-  dependencies:
-    "@babel/code-frame" "^7.0.0"
-    "@babel/generator" "^7.4.0"
-    "@babel/helpers" "^7.4.3"
-    "@babel/parser" "^7.4.3"
-    "@babel/template" "^7.4.0"
-    "@babel/traverse" "^7.4.3"
-    "@babel/types" "^7.4.0"
-    convert-source-map "^1.1.0"
+"@babel/code-frame@^7.8.3":
+  version "7.8.3"
+  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.8.3.tgz#33e25903d7481181534e12ec0a25f16b6fcf419e"
+  dependencies:
+    "@babel/highlight" "^7.8.3"
+
+"@babel/core@7.9.0":
+  version "7.9.0"
+  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.9.0.tgz#ac977b538b77e132ff706f3b8a4dbad09c03c56e"
+  dependencies:
+    "@babel/code-frame" "^7.8.3"
+    "@babel/generator" "^7.9.0"
+    "@babel/helper-module-transforms" "^7.9.0"
+    "@babel/helpers" "^7.9.0"
+    "@babel/parser" "^7.9.0"
+    "@babel/template" "^7.8.6"
+    "@babel/traverse" "^7.9.0"
+    "@babel/types" "^7.9.0"
+    convert-source-map "^1.7.0"
     debug "^4.1.0"
-    json5 "^2.1.0"
-    lodash "^4.17.11"
+    gensync "^1.0.0-beta.1"
+    json5 "^2.1.2"
+    lodash "^4.17.13"
     resolve "^1.3.2"
     semver "^5.4.1"
     source-map "^0.5.0"
 
-"@babel/generator@^7.4.0":
-  version "7.4.0"
-  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.4.0.tgz#c230e79589ae7a729fd4631b9ded4dc220418196"
+"@babel/generator@^7.9.0":
+  version "7.9.3"
+  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.9.3.tgz#7c8b2956c6f68b3ab732bd16305916fbba521d94"
   dependencies:
-    "@babel/types" "^7.4.0"
-    jsesc "^2.5.1"
-    lodash "^4.17.11"
-    source-map "^0.5.0"
-    trim-right "^1.0.1"
-
-"@babel/generator@^7.6.2":
-  version "7.6.2"
-  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.6.2.tgz#dac8a3c2df118334c2a29ff3446da1636a8f8c03"
-  dependencies:
-    "@babel/types" "^7.6.0"
+    "@babel/types" "^7.9.0"
     jsesc "^2.5.1"
     lodash "^4.17.13"
     source-map "^0.5.0"
@@ -119,12 +105,26 @@
     "@babel/template" "^7.1.0"
     "@babel/types" "^7.0.0"
 
+"@babel/helper-function-name@^7.8.3":
+  version "7.8.3"
+  resolved "https://registry.yarnpkg.com/@babel/helper-function-name/-/helper-function-name-7.8.3.tgz#eeeb665a01b1f11068e9fb86ad56a1cb1a824cca"
+  dependencies:
+    "@babel/helper-get-function-arity" "^7.8.3"
+    "@babel/template" "^7.8.3"
+    "@babel/types" "^7.8.3"
+
 "@babel/helper-get-function-arity@^7.0.0":
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/@babel/helper-get-function-arity/-/helper-get-function-arity-7.0.0.tgz#83572d4320e2a4657263734113c42868b64e49c3"
   dependencies:
     "@babel/types" "^7.0.0"
 
+"@babel/helper-get-function-arity@^7.8.3":
+  version "7.8.3"
+  resolved "https://registry.yarnpkg.com/@babel/helper-get-function-arity/-/helper-get-function-arity-7.8.3.tgz#b894b947bd004381ce63ea1db9f08547e920abd5"
+  dependencies:
+    "@babel/types" "^7.8.3"
+
 "@babel/helper-hoist-variables@^7.4.4":
   version "7.4.4"
   resolved "https://registry.yarnpkg.com/@babel/helper-hoist-variables/-/helper-hoist-variables-7.4.4.tgz#0298b5f25c8c09c53102d52ac4a98f773eb2850a"
@@ -137,32 +137,34 @@
   dependencies:
     "@babel/types" "^7.5.5"
 
+"@babel/helper-member-expression-to-functions@^7.8.3":
+  version "7.8.3"
+  resolved "https://registry.yarnpkg.com/@babel/helper-member-expression-to-functions/-/helper-member-expression-to-functions-7.8.3.tgz#659b710498ea6c1d9907e0c73f206eee7dadc24c"
+  dependencies:
+    "@babel/types" "^7.8.3"
+
 "@babel/helper-module-imports@^7.0.0":
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/@babel/helper-module-imports/-/helper-module-imports-7.0.0.tgz#96081b7111e486da4d2cd971ad1a4fe216cc2e3d"
   dependencies:
     "@babel/types" "^7.0.0"
 
-"@babel/helper-module-transforms@^7.1.0":
-  version "7.4.3"
-  resolved "https://registry.yarnpkg.com/@babel/helper-module-transforms/-/helper-module-transforms-7.4.3.tgz#b1e357a1c49e58a47211a6853abb8e2aaefeb064"
+"@babel/helper-module-imports@^7.8.3":
+  version "7.8.3"
+  resolved "https://registry.yarnpkg.com/@babel/helper-module-imports/-/helper-module-imports-7.8.3.tgz#7fe39589b39c016331b6b8c3f441e8f0b1419498"
   dependencies:
-    "@babel/helper-module-imports" "^7.0.0"
-    "@babel/helper-simple-access" "^7.1.0"
-    "@babel/helper-split-export-declaration" "^7.0.0"
-    "@babel/template" "^7.2.2"
-    "@babel/types" "^7.2.2"
-    lodash "^4.17.11"
+    "@babel/types" "^7.8.3"
 
-"@babel/helper-module-transforms@^7.4.4":
-  version "7.5.5"
-  resolved "https://registry.yarnpkg.com/@babel/helper-module-transforms/-/helper-module-transforms-7.5.5.tgz#f84ff8a09038dcbca1fd4355661a500937165b4a"
+"@babel/helper-module-transforms@^7.1.0", "@babel/helper-module-transforms@^7.4.4", "@babel/helper-module-transforms@^7.9.0":
+  version "7.9.0"
+  resolved "https://registry.yarnpkg.com/@babel/helper-module-transforms/-/helper-module-transforms-7.9.0.tgz#43b34dfe15961918707d247327431388e9fe96e5"
   dependencies:
-    "@babel/helper-module-imports" "^7.0.0"
-    "@babel/helper-simple-access" "^7.1.0"
-    "@babel/helper-split-export-declaration" "^7.4.4"
-    "@babel/template" "^7.4.4"
-    "@babel/types" "^7.5.5"
+    "@babel/helper-module-imports" "^7.8.3"
+    "@babel/helper-replace-supers" "^7.8.6"
+    "@babel/helper-simple-access" "^7.8.3"
+    "@babel/helper-split-export-declaration" "^7.8.3"
+    "@babel/template" "^7.8.6"
+    "@babel/types" "^7.9.0"
     lodash "^4.17.13"
 
 "@babel/helper-optimise-call-expression@^7.0.0":
@@ -171,6 +173,12 @@
   dependencies:
     "@babel/types" "^7.0.0"
 
+"@babel/helper-optimise-call-expression@^7.8.3":
+  version "7.8.3"
+  resolved "https://registry.yarnpkg.com/@babel/helper-optimise-call-expression/-/helper-optimise-call-expression-7.8.3.tgz#7ed071813d09c75298ef4f208956006b6111ecb9"
+  dependencies:
+    "@babel/types" "^7.8.3"
+
 "@babel/helper-plugin-utils@^7.0.0":
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/@babel/helper-plugin-utils/-/helper-plugin-utils-7.0.0.tgz#bbb3fbee98661c569034237cc03967ba99b4f250"
@@ -206,6 +214,15 @@
     "@babel/traverse" "^7.5.5"
     "@babel/types" "^7.5.5"
 
+"@babel/helper-replace-supers@^7.8.6":
+  version "7.8.6"
+  resolved "https://registry.yarnpkg.com/@babel/helper-replace-supers/-/helper-replace-supers-7.8.6.tgz#5ada744fd5ad73203bf1d67459a27dcba67effc8"
+  dependencies:
+    "@babel/helper-member-expression-to-functions" "^7.8.3"
+    "@babel/helper-optimise-call-expression" "^7.8.3"
+    "@babel/traverse" "^7.8.6"
+    "@babel/types" "^7.8.6"
+
 "@babel/helper-simple-access@^7.1.0":
   version "7.1.0"
   resolved "https://registry.yarnpkg.com/@babel/helper-simple-access/-/helper-simple-access-7.1.0.tgz#65eeb954c8c245beaa4e859da6188f39d71e585c"
@@ -213,11 +230,12 @@
     "@babel/template" "^7.1.0"
     "@babel/types" "^7.0.0"
 
-"@babel/helper-split-export-declaration@^7.0.0", "@babel/helper-split-export-declaration@^7.4.0":
-  version "7.4.0"
-  resolved "https://registry.yarnpkg.com/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.4.0.tgz#571bfd52701f492920d63b7f735030e9a3e10b55"
+"@babel/helper-simple-access@^7.8.3":
+  version "7.8.3"
+  resolved "https://registry.yarnpkg.com/@babel/helper-simple-access/-/helper-simple-access-7.8.3.tgz#7f8109928b4dab4654076986af575231deb639ae"
   dependencies:
-    "@babel/types" "^7.4.0"
+    "@babel/template" "^7.8.3"
+    "@babel/types" "^7.8.3"
 
 "@babel/helper-split-export-declaration@^7.4.4":
   version "7.4.4"
@@ -225,6 +243,16 @@
   dependencies:
     "@babel/types" "^7.4.4"
 
+"@babel/helper-split-export-declaration@^7.8.3":
+  version "7.8.3"
+  resolved "https://registry.yarnpkg.com/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.8.3.tgz#31a9f30070f91368a7182cf05f831781065fc7a9"
+  dependencies:
+    "@babel/types" "^7.8.3"
+
+"@babel/helper-validator-identifier@^7.9.0":
+  version "7.9.0"
+  resolved "https://registry.yarnpkg.com/@babel/helper-validator-identifier/-/helper-validator-identifier-7.9.0.tgz#ad53562a7fc29b3b9a91bbf7d10397fd146346ed"
+
 "@babel/helper-wrap-function@^7.1.0":
   version "7.2.0"
   resolved "https://registry.yarnpkg.com/@babel/helper-wrap-function/-/helper-wrap-function-7.2.0.tgz#c4e0012445769e2815b55296ead43a958549f6fa"
@@ -234,20 +262,20 @@
     "@babel/traverse" "^7.1.0"
     "@babel/types" "^7.2.0"
 
-"@babel/helpers@^7.4.3":
-  version "7.4.3"
-  resolved "https://registry.yarnpkg.com/@babel/helpers/-/helpers-7.4.3.tgz#7b1d354363494b31cb9a2417ae86af32b7853a3b"
+"@babel/helpers@^7.9.0":
+  version "7.9.2"
+  resolved "https://registry.yarnpkg.com/@babel/helpers/-/helpers-7.9.2.tgz#b42a81a811f1e7313b88cba8adc66b3d9ae6c09f"
   dependencies:
-    "@babel/template" "^7.4.0"
-    "@babel/traverse" "^7.4.3"
-    "@babel/types" "^7.4.0"
+    "@babel/template" "^7.8.3"
+    "@babel/traverse" "^7.9.0"
+    "@babel/types" "^7.9.0"
 
-"@babel/highlight@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/highlight/-/highlight-7.0.0.tgz#f710c38c8d458e6dd9a201afb637fcb781ce99e4"
+"@babel/highlight@^7.8.3":
+  version "7.9.0"
+  resolved "https://registry.yarnpkg.com/@babel/highlight/-/highlight-7.9.0.tgz#4e9b45ccb82b79607271b2979ad82c7b68163079"
   dependencies:
+    "@babel/helper-validator-identifier" "^7.9.0"
     chalk "^2.0.0"
-    esutils "^2.0.2"
     js-tokens "^4.0.0"
 
 "@babel/node@7.2.2":
@@ -260,13 +288,9 @@
     lodash "^4.17.10"
     v8flags "^3.1.1"
 
-"@babel/parser@^7.4.0", "@babel/parser@^7.4.3":
-  version "7.4.3"
-  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.4.3.tgz#eb3ac80f64aa101c907d4ce5406360fe75b7895b"
-
-"@babel/parser@^7.6.0", "@babel/parser@^7.6.2":
-  version "7.6.2"
-  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.6.2.tgz#205e9c95e16ba3b8b96090677a67c9d6075b70a1"
+"@babel/parser@^7.8.6", "@babel/parser@^7.9.0":
+  version "7.9.3"
+  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.9.3.tgz#043a5fc2ad8b7ea9facddc4e802a1f0f25da7255"
 
 "@babel/plugin-proposal-async-generator-functions@^7.2.0":
   version "7.2.0"
@@ -680,55 +704,33 @@
   dependencies:
     regenerator-runtime "^0.13.2"
 
-"@babel/template@^7.1.0", "@babel/template@^7.2.2", "@babel/template@^7.4.0":
-  version "7.4.0"
-  resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.4.0.tgz#12474e9c077bae585c5d835a95c0b0b790c25c8b"
+"@babel/template@^7.1.0", "@babel/template@^7.8.3", "@babel/template@^7.8.6":
+  version "7.8.6"
+  resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.8.6.tgz#86b22af15f828dfb086474f964dcc3e39c43ce2b"
   dependencies:
-    "@babel/code-frame" "^7.0.0"
-    "@babel/parser" "^7.4.0"
-    "@babel/types" "^7.4.0"
+    "@babel/code-frame" "^7.8.3"
+    "@babel/parser" "^7.8.6"
+    "@babel/types" "^7.8.6"
 
-"@babel/template@^7.4.4":
-  version "7.6.0"
-  resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.6.0.tgz#7f0159c7f5012230dad64cca42ec9bdb5c9536e6"
+"@babel/traverse@^7.1.0", "@babel/traverse@^7.4.4", "@babel/traverse@^7.5.5", "@babel/traverse@^7.8.6", "@babel/traverse@^7.9.0":
+  version "7.9.0"
+  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.9.0.tgz#d3882c2830e513f4fe4cec9fe76ea1cc78747892"
   dependencies:
-    "@babel/code-frame" "^7.0.0"
-    "@babel/parser" "^7.6.0"
-    "@babel/types" "^7.6.0"
-
-"@babel/traverse@^7.1.0", "@babel/traverse@^7.4.3":
-  version "7.4.3"
-  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.4.3.tgz#1a01f078fc575d589ff30c0f71bf3c3d9ccbad84"
-  dependencies:
-    "@babel/code-frame" "^7.0.0"
-    "@babel/generator" "^7.4.0"
-    "@babel/helper-function-name" "^7.1.0"
-    "@babel/helper-split-export-declaration" "^7.4.0"
-    "@babel/parser" "^7.4.3"
-    "@babel/types" "^7.4.0"
-    debug "^4.1.0"
-    globals "^11.1.0"
-    lodash "^4.17.11"
-
-"@babel/traverse@^7.4.4", "@babel/traverse@^7.5.5":
-  version "7.6.2"
-  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.6.2.tgz#b0e2bfd401d339ce0e6c05690206d1e11502ce2c"
-  dependencies:
-    "@babel/code-frame" "^7.5.5"
-    "@babel/generator" "^7.6.2"
-    "@babel/helper-function-name" "^7.1.0"
-    "@babel/helper-split-export-declaration" "^7.4.4"
-    "@babel/parser" "^7.6.2"
-    "@babel/types" "^7.6.0"
+    "@babel/code-frame" "^7.8.3"
+    "@babel/generator" "^7.9.0"
+    "@babel/helper-function-name" "^7.8.3"
+    "@babel/helper-split-export-declaration" "^7.8.3"
+    "@babel/parser" "^7.9.0"
+    "@babel/types" "^7.9.0"
     debug "^4.1.0"
     globals "^11.1.0"
     lodash "^4.17.13"
 
-"@babel/types@^7.0.0", "@babel/types@^7.2.0", "@babel/types@^7.2.2", "@babel/types@^7.3.0", "@babel/types@^7.4.0", "@babel/types@^7.4.4", "@babel/types@^7.5.5", "@babel/types@^7.6.0":
-  version "7.6.1"
-  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.6.1.tgz#53abf3308add3ac2a2884d539151c57c4b3ac648"
+"@babel/types@^7.0.0", "@babel/types@^7.2.0", "@babel/types@^7.3.0", "@babel/types@^7.4.4", "@babel/types@^7.5.5", "@babel/types@^7.6.0", "@babel/types@^7.8.3", "@babel/types@^7.8.6", "@babel/types@^7.9.0":
+  version "7.9.0"
+  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.9.0.tgz#00b064c3df83ad32b2dbf5ff07312b15c7f1efb5"
   dependencies:
-    esutils "^2.0.2"
+    "@babel/helper-validator-identifier" "^7.9.0"
     lodash "^4.17.13"
     to-fast-properties "^2.0.0"
 
@@ -1973,9 +1975,9 @@ content-type@~1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/content-type/-/content-type-1.0.4.tgz#e138cc75e040c727b1966fe5e5f8c9aee256fe3b"
 
-convert-source-map@^1.1.0:
-  version "1.6.0"
-  resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.6.0.tgz#51b537a8c43e0f04dec1993bffcdd504e758ac20"
+convert-source-map@^1.1.0, convert-source-map@^1.7.0:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.7.0.tgz#17a2cb882d7f77d3490585e2ce6c524424a3a442"
   dependencies:
     safe-buffer "~5.1.1"
 
@@ -3175,6 +3177,10 @@ gaze@^1.0.0:
   dependencies:
     globule "^1.0.0"
 
+gensync@^1.0.0-beta.1:
+  version "1.0.0-beta.1"
+  resolved "https://registry.yarnpkg.com/gensync/-/gensync-1.0.0-beta.1.tgz#58f4361ff987e5ff6e1e7a210827aa371eaac269"
+
 get-caller-file@^1.0.1:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-1.0.3.tgz#f978fa4c90d1dfe7ff2d6beda2a515e713bdcf4a"
@@ -4214,11 +4220,11 @@ json5@^1.0.1:
   dependencies:
     minimist "^1.2.0"
 
-json5@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/json5/-/json5-2.1.0.tgz#e7a0c62c48285c628d20a10b85c89bb807c32850"
+json5@^2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/json5/-/json5-2.1.2.tgz#43ef1f0af9835dd624751a6b7fa48874fb2d608e"
   dependencies:
-    minimist "^1.2.0"
+    minimist "^1.2.5"
 
 jsprim@^1.2.2:
   version "1.4.1"
@@ -4579,6 +4585,10 @@ minimist@^1.1.3, minimist@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
 
+minimist@^1.2.5:
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.5.tgz#67d66014b66a6a8aaa0c083c5fd58df4e4e97602"
+
 minipass@^2.2.1, minipass@^2.3.4:
   version "2.3.5"
   resolved "https://registry.yarnpkg.com/minipass/-/minipass-2.3.5.tgz#cacebe492022497f656b0f0f51e2682a9ed2d848"
@@ -6988,10 +6998,6 @@ trim-repeated@^1.0.0:
   dependencies:
     escape-string-regexp "^1.0.2"
 
-trim-right@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
-
 "true-case-path@^1.0.2":
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/true-case-path/-/true-case-path-1.0.3.tgz#f813b5a8c86b40da59606722b144e3225799f47d"