diff --git a/package.json b/package.json
index d97c1f8094..caa7c2fc79 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
     "@babel/eslint-parser": "^7.12.1",
     "@babel/eslint-plugin": "^7.12.13",
     "@babel/plugin-proposal-class-properties": "^7.10.1",
-    "@babel/plugin-proposal-private-methods": "^7.12.1",
+    "@babel/plugin-proposal-private-methods": "^7.12.13",
     "@babel/plugin-transform-modules-umd": "^7.12.1",
     "@babel/preset-env": "^7.12.11",
     "@uupaa/dynamic-import-polyfill": "^1.0.2",
diff --git a/yarn.lock b/yarn.lock
index 89a360f69d..1dab75fba9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9,6 +9,13 @@
   dependencies:
     "@babel/highlight" "^7.10.4"
 
+"@babel/code-frame@^7.12.13":
+  version "7.12.13"
+  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.12.13.tgz#dcfc826beef65e75c50e21d3837d7d95798dd658"
+  integrity sha512-HV1Cm0Q3ZrpCR93tkWOYiuYIgLxZXZFVG2VgK+MBWjUqZTundupbfx2aXarXuw5Ko5aMcjtJgbSs4vUGBS5v6g==
+  dependencies:
+    "@babel/highlight" "^7.12.13"
+
 "@babel/compat-data@^7.12.5", "@babel/compat-data@^7.12.7":
   version "7.12.7"
   resolved "https://registry.yarnpkg.com/@babel/compat-data/-/compat-data-7.12.7.tgz#9329b4782a7d6bbd7eef57e11addf91ee3ef1e41"
@@ -60,6 +67,15 @@
     jsesc "^2.5.1"
     source-map "^0.5.0"
 
+"@babel/generator@^7.12.13":
+  version "7.12.15"
+  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.12.15.tgz#4617b5d0b25cc572474cc1aafee1edeaf9b5368f"
+  integrity sha512-6F2xHxBiFXWNSGb7vyCUTBF8RCLY66rS0zEPcP8t/nQyXjha5EuK4z7H5o7fWG8B4M7y6mqVWq1J+1PuwRhecQ==
+  dependencies:
+    "@babel/types" "^7.12.13"
+    jsesc "^2.5.1"
+    source-map "^0.5.0"
+
 "@babel/helper-annotate-as-pure@^7.10.4":
   version "7.10.4"
   resolved "https://registry.yarnpkg.com/@babel/helper-annotate-as-pure/-/helper-annotate-as-pure-7.10.4.tgz#5bf0d495a3f757ac3bda48b5bf3b3ba309c72ba3"
@@ -85,16 +101,16 @@
     browserslist "^4.14.5"
     semver "^5.5.0"
 
-"@babel/helper-create-class-features-plugin@^7.12.1":
-  version "7.12.1"
-  resolved "https://registry.yarnpkg.com/@babel/helper-create-class-features-plugin/-/helper-create-class-features-plugin-7.12.1.tgz#3c45998f431edd4a9214c5f1d3ad1448a6137f6e"
-  integrity sha512-hkL++rWeta/OVOBTRJc9a5Azh5mt5WgZUGAKMD8JM141YsE08K//bp1unBBieO6rUKkIPyUE0USQ30jAy3Sk1w==
+"@babel/helper-create-class-features-plugin@^7.12.1", "@babel/helper-create-class-features-plugin@^7.12.13":
+  version "7.12.13"
+  resolved "https://registry.yarnpkg.com/@babel/helper-create-class-features-plugin/-/helper-create-class-features-plugin-7.12.13.tgz#0f1707c2eec1a4604f2a22a6fb209854ef2a399a"
+  integrity sha512-Vs/e9wv7rakKYeywsmEBSRC9KtmE7Px+YBlESekLeJOF0zbGUicGfXSNi3o+tfXSNS48U/7K9mIOOCR79Cl3+Q==
   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-function-name" "^7.12.13"
+    "@babel/helper-member-expression-to-functions" "^7.12.13"
+    "@babel/helper-optimise-call-expression" "^7.12.13"
+    "@babel/helper-replace-supers" "^7.12.13"
+    "@babel/helper-split-export-declaration" "^7.12.13"
 
 "@babel/helper-create-regexp-features-plugin@^7.12.1":
   version "7.12.1"
@@ -130,6 +146,15 @@
     "@babel/template" "^7.10.4"
     "@babel/types" "^7.10.4"
 
+"@babel/helper-function-name@^7.12.13":
+  version "7.12.13"
+  resolved "https://registry.yarnpkg.com/@babel/helper-function-name/-/helper-function-name-7.12.13.tgz#93ad656db3c3c2232559fd7b2c3dbdcbe0eb377a"
+  integrity sha512-TZvmPn0UOqmvi5G4vvw0qZTpVptGkB1GL61R6lKvrSdIxGm5Pky7Q3fpKiIkQCAtRCBUwB0PaThlx9vebCDSwA==
+  dependencies:
+    "@babel/helper-get-function-arity" "^7.12.13"
+    "@babel/template" "^7.12.13"
+    "@babel/types" "^7.12.13"
+
 "@babel/helper-get-function-arity@^7.10.4":
   version "7.10.4"
   resolved "https://registry.yarnpkg.com/@babel/helper-get-function-arity/-/helper-get-function-arity-7.10.4.tgz#98c1cbea0e2332f33f9a4661b8ce1505b2c19ba2"
@@ -137,6 +162,13 @@
   dependencies:
     "@babel/types" "^7.10.4"
 
+"@babel/helper-get-function-arity@^7.12.13":
+  version "7.12.13"
+  resolved "https://registry.yarnpkg.com/@babel/helper-get-function-arity/-/helper-get-function-arity-7.12.13.tgz#bc63451d403a3b3082b97e1d8b3fe5bd4091e583"
+  integrity sha512-DjEVzQNz5LICkzN0REdpD5prGoidvbdYk1BVgRUOINaWJP2t6avB27X1guXK1kXNrX0WMfsrm1A/ZBthYuIMQg==
+  dependencies:
+    "@babel/types" "^7.12.13"
+
 "@babel/helper-hoist-variables@^7.10.4":
   version "7.10.4"
   resolved "https://registry.yarnpkg.com/@babel/helper-hoist-variables/-/helper-hoist-variables-7.10.4.tgz#d49b001d1d5a68ca5e6604dda01a6297f7c9381e"
@@ -151,6 +183,13 @@
   dependencies:
     "@babel/types" "^7.12.1"
 
+"@babel/helper-member-expression-to-functions@^7.12.13":
+  version "7.12.13"
+  resolved "https://registry.yarnpkg.com/@babel/helper-member-expression-to-functions/-/helper-member-expression-to-functions-7.12.13.tgz#c5715695b4f8bab32660dbdcdc2341dec7e3df40"
+  integrity sha512-B+7nN0gIL8FZ8SvMcF+EPyB21KnCcZHQZFczCxbiNGV/O0rsrSBlWGLzmtBJ3GMjSVMIm4lpFhR+VdVBuIsUcQ==
+  dependencies:
+    "@babel/types" "^7.12.13"
+
 "@babel/helper-module-imports@7.x", "@babel/helper-module-imports@^7.10.4", "@babel/helper-module-imports@^7.12.1", "@babel/helper-module-imports@^7.12.5":
   version "7.12.5"
   resolved "https://registry.yarnpkg.com/@babel/helper-module-imports/-/helper-module-imports-7.12.5.tgz#1bfc0229f794988f76ed0a4d4e90860850b54dfb"
@@ -180,10 +219,17 @@
   dependencies:
     "@babel/types" "^7.10.4"
 
-"@babel/helper-plugin-utils@^7.0.0", "@babel/helper-plugin-utils@^7.10.4", "@babel/helper-plugin-utils@^7.8.0", "@babel/helper-plugin-utils@^7.8.3":
-  version "7.10.4"
-  resolved "https://registry.yarnpkg.com/@babel/helper-plugin-utils/-/helper-plugin-utils-7.10.4.tgz#2f75a831269d4f677de49986dff59927533cf375"
-  integrity sha512-O4KCvQA6lLiMU9l2eawBPMf1xPP8xPfB3iEQw150hOVTqj/rfXz0ThTb4HEzqQfs2Bmo5Ay8BzxfzVtBrr9dVg==
+"@babel/helper-optimise-call-expression@^7.12.13":
+  version "7.12.13"
+  resolved "https://registry.yarnpkg.com/@babel/helper-optimise-call-expression/-/helper-optimise-call-expression-7.12.13.tgz#5c02d171b4c8615b1e7163f888c1c81c30a2aaea"
+  integrity sha512-BdWQhoVJkp6nVjB7nkFWcn43dkprYauqtk++Py2eaf/GRDFm5BxRqEIZCiHlZUGAVmtwKcsVL1dC68WmzeFmiA==
+  dependencies:
+    "@babel/types" "^7.12.13"
+
+"@babel/helper-plugin-utils@^7.0.0", "@babel/helper-plugin-utils@^7.10.4", "@babel/helper-plugin-utils@^7.12.13", "@babel/helper-plugin-utils@^7.8.0", "@babel/helper-plugin-utils@^7.8.3":
+  version "7.12.13"
+  resolved "https://registry.yarnpkg.com/@babel/helper-plugin-utils/-/helper-plugin-utils-7.12.13.tgz#174254d0f2424d8aefb4dd48057511247b0a9eeb"
+  integrity sha512-C+10MXCXJLiR6IeG9+Wiejt9jmtFpxUc3MQqCmPY8hfCjyUGl9kT+B2okzEZrtykiwrc4dbCPdDoz0A/HQbDaA==
 
 "@babel/helper-regex@^7.10.4":
   version "7.10.5"
@@ -211,6 +257,16 @@
     "@babel/traverse" "^7.12.5"
     "@babel/types" "^7.12.5"
 
+"@babel/helper-replace-supers@^7.12.13":
+  version "7.12.13"
+  resolved "https://registry.yarnpkg.com/@babel/helper-replace-supers/-/helper-replace-supers-7.12.13.tgz#00ec4fb6862546bd3d0aff9aac56074277173121"
+  integrity sha512-pctAOIAMVStI2TMLhozPKbf5yTEXc0OJa0eENheb4w09SrgOWEs+P4nTOZYJQCqs8JlErGLDPDJTiGIp3ygbLg==
+  dependencies:
+    "@babel/helper-member-expression-to-functions" "^7.12.13"
+    "@babel/helper-optimise-call-expression" "^7.12.13"
+    "@babel/traverse" "^7.12.13"
+    "@babel/types" "^7.12.13"
+
 "@babel/helper-simple-access@^7.12.1":
   version "7.12.1"
   resolved "https://registry.yarnpkg.com/@babel/helper-simple-access/-/helper-simple-access-7.12.1.tgz#32427e5aa61547d38eb1e6eaf5fd1426fdad9136"
@@ -232,6 +288,13 @@
   dependencies:
     "@babel/types" "^7.11.0"
 
+"@babel/helper-split-export-declaration@^7.12.13":
+  version "7.12.13"
+  resolved "https://registry.yarnpkg.com/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.12.13.tgz#e9430be00baf3e88b0e13e6f9d4eaf2136372b05"
+  integrity sha512-tCJDltF83htUtXx5NLcaDqRmknv652ZWCHyoTETf1CXYJdPC7nohZohjUgieXhv0hTJdRf2FjDueFehdNucpzg==
+  dependencies:
+    "@babel/types" "^7.12.13"
+
 "@babel/helper-validator-identifier@^7.10.4":
   version "7.10.4"
   resolved "https://registry.yarnpkg.com/@babel/helper-validator-identifier/-/helper-validator-identifier-7.10.4.tgz#a78c7a7251e01f616512d31b10adcf52ada5e0d2"
@@ -275,11 +338,25 @@
     chalk "^2.0.0"
     js-tokens "^4.0.0"
 
+"@babel/highlight@^7.12.13":
+  version "7.12.13"
+  resolved "https://registry.yarnpkg.com/@babel/highlight/-/highlight-7.12.13.tgz#8ab538393e00370b26271b01fa08f7f27f2e795c"
+  integrity sha512-kocDQvIbgMKlWxXe9fof3TQ+gkIPOUSEYhJjqUjvKMez3krV7vbzYCDq39Oj11UAVK7JqPVGQPlgE85dPNlQww==
+  dependencies:
+    "@babel/helper-validator-identifier" "^7.12.11"
+    chalk "^2.0.0"
+    js-tokens "^4.0.0"
+
 "@babel/parser@^7.12.10", "@babel/parser@^7.12.7":
   version "7.12.10"
   resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.12.10.tgz#824600d59e96aea26a5a2af5a9d812af05c3ae81"
   integrity sha512-PJdRPwyoOqFAWfLytxrWwGrAxghCgh/yTNCYciOz8QgjflA7aZhECPZAa2VUedKg2+QMWkI0L9lynh2SNmNEgA==
 
+"@babel/parser@^7.12.13":
+  version "7.12.15"
+  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.12.15.tgz#2b20de7f0b4b332d9b119dd9c33409c538b8aacf"
+  integrity sha512-AQBOU2Z9kWwSZMd6lNjCX0GUgFonL1wAM1db8L8PMk9UDaGsRCArBkU4Sc+UCM3AE4hjbXx+h58Lb3QT4oRmrA==
+
 "@babel/plugin-proposal-async-generator-functions@^7.12.1":
   version "7.12.1"
   resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-async-generator-functions/-/plugin-proposal-async-generator-functions-7.12.1.tgz#dc6c1170e27d8aca99ff65f4925bd06b1c90550e"
@@ -371,13 +448,13 @@
     "@babel/helper-skip-transparent-expression-wrappers" "^7.12.1"
     "@babel/plugin-syntax-optional-chaining" "^7.8.0"
 
-"@babel/plugin-proposal-private-methods@^7.12.1":
-  version "7.12.1"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-private-methods/-/plugin-proposal-private-methods-7.12.1.tgz#86814f6e7a21374c980c10d38b4493e703f4a389"
-  integrity sha512-mwZ1phvH7/NHK6Kf8LP7MYDogGV+DKB1mryFOEwx5EBNQrosvIczzZFTUmWaeujd5xT6G1ELYWUz3CutMhjE1w==
+"@babel/plugin-proposal-private-methods@^7.12.1", "@babel/plugin-proposal-private-methods@^7.12.13":
+  version "7.12.13"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-private-methods/-/plugin-proposal-private-methods-7.12.13.tgz#ea78a12554d784ecf7fc55950b752d469d9c4a71"
+  integrity sha512-sV0V57uUwpauixvR7s2o75LmwJI6JECwm5oPUY5beZB1nBl2i37hc7CJGqB5G+58fur5Y6ugvl3LRONk5x34rg==
   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-unicode-property-regex@^7.12.1", "@babel/plugin-proposal-unicode-property-regex@^7.4.4":
   version "7.12.1"
@@ -819,6 +896,15 @@
     "@babel/parser" "^7.12.7"
     "@babel/types" "^7.12.7"
 
+"@babel/template@^7.12.13":
+  version "7.12.13"
+  resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.12.13.tgz#530265be8a2589dbb37523844c5bcb55947fb327"
+  integrity sha512-/7xxiGA57xMo/P2GVvdEumr8ONhFOhfgq2ihK3h1e6THqzTAkHbkXgB0xI9yeTfIUoH3+oAeHhqm/I43OTbbjA==
+  dependencies:
+    "@babel/code-frame" "^7.12.13"
+    "@babel/parser" "^7.12.13"
+    "@babel/types" "^7.12.13"
+
 "@babel/traverse@^7.10.4", "@babel/traverse@^7.12.1", "@babel/traverse@^7.12.10", "@babel/traverse@^7.12.5":
   version "7.12.10"
   resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.12.10.tgz#2d1f4041e8bf42ea099e5b2dc48d6a594c00017a"
@@ -834,6 +920,21 @@
     globals "^11.1.0"
     lodash "^4.17.19"
 
+"@babel/traverse@^7.12.13":
+  version "7.12.13"
+  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.12.13.tgz#689f0e4b4c08587ad26622832632735fb8c4e0c0"
+  integrity sha512-3Zb4w7eE/OslI0fTp8c7b286/cQps3+vdLW3UcwC8VSJC6GbKn55aeVVu2QJNuCDoeKyptLOFrPq8WqZZBodyA==
+  dependencies:
+    "@babel/code-frame" "^7.12.13"
+    "@babel/generator" "^7.12.13"
+    "@babel/helper-function-name" "^7.12.13"
+    "@babel/helper-split-export-declaration" "^7.12.13"
+    "@babel/parser" "^7.12.13"
+    "@babel/types" "^7.12.13"
+    debug "^4.1.0"
+    globals "^11.1.0"
+    lodash "^4.17.19"
+
 "@babel/types@^7.10.4", "@babel/types@^7.10.5", "@babel/types@^7.11.0", "@babel/types@^7.12.1", "@babel/types@^7.12.10", "@babel/types@^7.12.11", "@babel/types@^7.12.5", "@babel/types@^7.12.7", "@babel/types@^7.4.4":
   version "7.12.11"
   resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.12.11.tgz#a86e4d71e30a9b6ee102590446c98662589283ce"
@@ -843,6 +944,15 @@
     lodash "^4.17.19"
     to-fast-properties "^2.0.0"
 
+"@babel/types@^7.12.13":
+  version "7.12.13"
+  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.12.13.tgz#8be1aa8f2c876da11a9cf650c0ecf656913ad611"
+  integrity sha512-oKrdZTld2im1z8bDwTOQvUbxKwE+854zc16qWZQlcTqMN00pWxHQ4ZeOq0yDMnisOpRykH2/5Qqcrk/OlbAjiQ==
+  dependencies:
+    "@babel/helper-validator-identifier" "^7.12.11"
+    lodash "^4.17.19"
+    to-fast-properties "^2.0.0"
+
 "@csstools/convert-colors@^1.4.0":
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/@csstools/convert-colors/-/convert-colors-1.4.0.tgz#ad495dc41b12e75d588c6db8b9834f08fa131eb7"