diff --git a/package.json b/package.json
index 6977ad9a..b7c062c7 100644
--- a/package.json
+++ b/package.json
@@ -63,7 +63,7 @@
     "@ava/babel": "1.0.1",
     "@babel/cli": "7.12.13",
     "@babel/core": "7.12.13",
-    "@babel/plugin-proposal-class-properties": "^7.12.1",
+    "@babel/plugin-proposal-class-properties": "^7.12.13",
     "@babel/plugin-proposal-numeric-separator": "^7.12.13",
     "@babel/plugin-proposal-object-rest-spread": "^7.12.13",
     "@babel/plugin-proposal-optional-chaining": "7.12.13",
diff --git a/yarn.lock b/yarn.lock
index f60d1d36..55945e82 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -107,17 +107,6 @@
   dependencies:
     "@babel/types" "^7.12.13"
 
-"@babel/helper-create-class-features-plugin@^7.12.1":
-  version "7.12.1"
-  resolved "https://registry.npmjs.org/@babel/helper-create-class-features-plugin/-/helper-create-class-features-plugin-7.12.1.tgz#3c45998f431edd4a9214c5f1d3ad1448a6137f6e"
-  integrity sha512-hkL++rWeta/OVOBTRJc9a5Azh5mt5WgZUGAKMD8JM141YsE08K//bp1unBBieO6rUKkIPyUE0USQ30jAy3Sk1w==
-  dependencies:
-    "@babel/helper-function-name" "^7.10.4"
-    "@babel/helper-member-expression-to-functions" "^7.12.1"
-    "@babel/helper-optimise-call-expression" "^7.10.4"
-    "@babel/helper-replace-supers" "^7.12.1"
-    "@babel/helper-split-export-declaration" "^7.10.4"
-
 "@babel/helper-create-class-features-plugin@^7.12.13":
   version "7.12.13"
   resolved "https://registry.npmjs.org/@babel/helper-create-class-features-plugin/-/helper-create-class-features-plugin-7.12.13.tgz#0f1707c2eec1a4604f2a22a6fb209854ef2a399a"
@@ -129,15 +118,6 @@
     "@babel/helper-replace-supers" "^7.12.13"
     "@babel/helper-split-export-declaration" "^7.12.13"
 
-"@babel/helper-function-name@^7.10.4":
-  version "7.12.11"
-  resolved "https://registry.npmjs.org/@babel/helper-function-name/-/helper-function-name-7.12.11.tgz#1fd7738aee5dcf53c3ecff24f1da9c511ec47b42"
-  integrity sha512-AtQKjtYNolKNi6nNNVLQ27CP6D9oFR6bq/HPYSizlzbp7uC1M59XJe8L+0uXjbIaZaUJF99ruHqVGiKXU/7ybA==
-  dependencies:
-    "@babel/helper-get-function-arity" "^7.12.10"
-    "@babel/template" "^7.12.7"
-    "@babel/types" "^7.12.11"
-
 "@babel/helper-function-name@^7.12.13":
   version "7.12.13"
   resolved "https://registry.npmjs.org/@babel/helper-function-name/-/helper-function-name-7.12.13.tgz#93ad656db3c3c2232559fd7b2c3dbdcbe0eb377a"
@@ -147,13 +127,6 @@
     "@babel/template" "^7.12.13"
     "@babel/types" "^7.12.13"
 
-"@babel/helper-get-function-arity@^7.12.10":
-  version "7.12.10"
-  resolved "https://registry.npmjs.org/@babel/helper-get-function-arity/-/helper-get-function-arity-7.12.10.tgz#b158817a3165b5faa2047825dfa61970ddcc16cf"
-  integrity sha512-mm0n5BPjR06wh9mPQaDdXWDoll/j5UpCAPl1x8fS71GHm7HA6Ua2V4ylG1Ju8lvcTOietbPNNPaSilKj+pj+Ag==
-  dependencies:
-    "@babel/types" "^7.12.10"
-
 "@babel/helper-get-function-arity@^7.12.13":
   version "7.12.13"
   resolved "https://registry.npmjs.org/@babel/helper-get-function-arity/-/helper-get-function-arity-7.12.13.tgz#bc63451d403a3b3082b97e1d8b3fe5bd4091e583"
@@ -161,13 +134,6 @@
   dependencies:
     "@babel/types" "^7.12.13"
 
-"@babel/helper-member-expression-to-functions@^7.12.1", "@babel/helper-member-expression-to-functions@^7.12.7":
-  version "7.12.7"
-  resolved "https://registry.npmjs.org/@babel/helper-member-expression-to-functions/-/helper-member-expression-to-functions-7.12.7.tgz#aa77bd0396ec8114e5e30787efa78599d874a855"
-  integrity sha512-DCsuPyeWxeHgh1Dus7APn7iza42i/qXqiFPWyBDdOFtvS581JQePsc1F/nD+fHrcswhLlRc2UpYS1NwERxZhHw==
-  dependencies:
-    "@babel/types" "^7.12.7"
-
 "@babel/helper-member-expression-to-functions@^7.12.13":
   version "7.12.13"
   resolved "https://registry.npmjs.org/@babel/helper-member-expression-to-functions/-/helper-member-expression-to-functions-7.12.13.tgz#c5715695b4f8bab32660dbdcdc2341dec7e3df40"
@@ -204,13 +170,6 @@
     "@babel/types" "^7.12.13"
     lodash "^4.17.19"
 
-"@babel/helper-optimise-call-expression@^7.10.4", "@babel/helper-optimise-call-expression@^7.12.10":
-  version "7.12.10"
-  resolved "https://registry.npmjs.org/@babel/helper-optimise-call-expression/-/helper-optimise-call-expression-7.12.10.tgz#94ca4e306ee11a7dd6e9f42823e2ac6b49881e2d"
-  integrity sha512-4tpbU0SrSTjjt65UMWSrUOPZTsgvPgGG4S8QSTNHacKzpS51IVWGDj0yCwyeZND/i+LSN2g/O63jEXEWm49sYQ==
-  dependencies:
-    "@babel/types" "^7.12.10"
-
 "@babel/helper-optimise-call-expression@^7.12.13":
   version "7.12.13"
   resolved "https://registry.npmjs.org/@babel/helper-optimise-call-expression/-/helper-optimise-call-expression-7.12.13.tgz#5c02d171b4c8615b1e7163f888c1c81c30a2aaea"
@@ -223,16 +182,6 @@
   resolved "https://registry.npmjs.org/@babel/helper-plugin-utils/-/helper-plugin-utils-7.12.13.tgz#174254d0f2424d8aefb4dd48057511247b0a9eeb"
   integrity sha512-C+10MXCXJLiR6IeG9+Wiejt9jmtFpxUc3MQqCmPY8hfCjyUGl9kT+B2okzEZrtykiwrc4dbCPdDoz0A/HQbDaA==
 
-"@babel/helper-replace-supers@^7.12.1":
-  version "7.12.11"
-  resolved "https://registry.npmjs.org/@babel/helper-replace-supers/-/helper-replace-supers-7.12.11.tgz#ea511658fc66c7908f923106dd88e08d1997d60d"
-  integrity sha512-q+w1cqmhL7R0FNzth/PLLp2N+scXEK/L2AHbXUyydxp828F4FEa5WcVoqui9vFRiHDQErj9Zof8azP32uGVTRA==
-  dependencies:
-    "@babel/helper-member-expression-to-functions" "^7.12.7"
-    "@babel/helper-optimise-call-expression" "^7.12.10"
-    "@babel/traverse" "^7.12.10"
-    "@babel/types" "^7.12.11"
-
 "@babel/helper-replace-supers@^7.12.13":
   version "7.12.13"
   resolved "https://registry.npmjs.org/@babel/helper-replace-supers/-/helper-replace-supers-7.12.13.tgz#00ec4fb6862546bd3d0aff9aac56074277173121"
@@ -264,13 +213,6 @@
   dependencies:
     "@babel/types" "^7.12.1"
 
-"@babel/helper-split-export-declaration@^7.10.4":
-  version "7.12.11"
-  resolved "https://registry.npmjs.org/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.12.11.tgz#1b4cc424458643c47d37022223da33d76ea4603a"
-  integrity sha512-LsIVN8j48gHgwzfocYUSkO/hjYAOJqlpJEc7tGXcIm4cubjVUf8LGW6eWRyxEu7gA25q02p0rQUWoCI33HNS5g==
-  dependencies:
-    "@babel/types" "^7.12.11"
-
 "@babel/helper-split-export-declaration@^7.12.13":
   version "7.12.13"
   resolved "https://registry.npmjs.org/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.12.13.tgz#e9430be00baf3e88b0e13e6f9d4eaf2136372b05"
@@ -311,13 +253,13 @@
   resolved "https://registry.npmjs.org/@babel/parser/-/parser-7.12.15.tgz#2b20de7f0b4b332d9b119dd9c33409c538b8aacf"
   integrity sha512-AQBOU2Z9kWwSZMd6lNjCX0GUgFonL1wAM1db8L8PMk9UDaGsRCArBkU4Sc+UCM3AE4hjbXx+h58Lb3QT4oRmrA==
 
-"@babel/plugin-proposal-class-properties@^7.12.1":
-  version "7.12.1"
-  resolved "https://registry.npmjs.org/@babel/plugin-proposal-class-properties/-/plugin-proposal-class-properties-7.12.1.tgz#a082ff541f2a29a4821065b8add9346c0c16e5de"
-  integrity sha512-cKp3dlQsFsEs5CWKnN7BnSHOd0EOW8EKpEjkoz1pO2E5KzIDNV9Ros1b0CnmbVgAGXJubOYVBOGCT1OmJwOI7w==
+"@babel/plugin-proposal-class-properties@^7.12.13":
+  version "7.12.13"
+  resolved "https://registry.npmjs.org/@babel/plugin-proposal-class-properties/-/plugin-proposal-class-properties-7.12.13.tgz#3d2ce350367058033c93c098e348161d6dc0d8c8"
+  integrity sha512-8SCJ0Ddrpwv4T7Gwb33EmW1V9PY5lggTO+A8WjyIwxrSHDUyBw4MtF96ifn1n8H806YlxbVCoKXbbmzD6RD+cA==
   dependencies:
-    "@babel/helper-create-class-features-plugin" "^7.12.1"
-    "@babel/helper-plugin-utils" "^7.10.4"
+    "@babel/helper-create-class-features-plugin" "^7.12.13"
+    "@babel/helper-plugin-utils" "^7.12.13"
 
 "@babel/plugin-proposal-dynamic-import@^7.8.3":
   version "7.12.1"
@@ -496,7 +438,7 @@
   dependencies:
     regenerator-runtime "^0.13.4"
 
-"@babel/template@^7.12.13", "@babel/template@^7.12.7":
+"@babel/template@^7.12.13":
   version "7.12.13"
   resolved "https://registry.npmjs.org/@babel/template/-/template-7.12.13.tgz#530265be8a2589dbb37523844c5bcb55947fb327"
   integrity sha512-/7xxiGA57xMo/P2GVvdEumr8ONhFOhfgq2ihK3h1e6THqzTAkHbkXgB0xI9yeTfIUoH3+oAeHhqm/I43OTbbjA==
@@ -505,7 +447,7 @@
     "@babel/parser" "^7.12.13"
     "@babel/types" "^7.12.13"
 
-"@babel/traverse@^7.12.10", "@babel/traverse@^7.12.13":
+"@babel/traverse@^7.12.13":
   version "7.12.13"
   resolved "https://registry.npmjs.org/@babel/traverse/-/traverse-7.12.13.tgz#689f0e4b4c08587ad26622832632735fb8c4e0c0"
   integrity sha512-3Zb4w7eE/OslI0fTp8c7b286/cQps3+vdLW3UcwC8VSJC6GbKn55aeVVu2QJNuCDoeKyptLOFrPq8WqZZBodyA==
@@ -529,7 +471,7 @@
     lodash "^4.17.13"
     to-fast-properties "^2.0.0"
 
-"@babel/types@^7.12.1", "@babel/types@^7.12.10", "@babel/types@^7.12.11", "@babel/types@^7.12.13", "@babel/types@^7.12.5", "@babel/types@^7.12.7":
+"@babel/types@^7.12.1", "@babel/types@^7.12.10", "@babel/types@^7.12.13", "@babel/types@^7.12.5":
   version "7.12.13"
   resolved "https://registry.npmjs.org/@babel/types/-/types-7.12.13.tgz#8be1aa8f2c876da11a9cf650c0ecf656913ad611"
   integrity sha512-oKrdZTld2im1z8bDwTOQvUbxKwE+854zc16qWZQlcTqMN00pWxHQ4ZeOq0yDMnisOpRykH2/5Qqcrk/OlbAjiQ==