diff --git a/package.json b/package.json
index d107de6..e9ff9a1 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
   "devDependencies": {
     "@babel/cli": "^7.13.10",
     "@babel/core": "^7.13.10",
-    "@babel/preset-env": "^7.13.10",
+    "@babel/preset-env": "^7.13.12",
     "@babel/register": "^7.13.8",
     "@open-wc/building-rollup": "^1.9.4",
     "@open-wc/eslint-config": "^4.2.0",
diff --git a/yarn.lock b/yarn.lock
index 0bd3c89..803fc1c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -43,6 +43,11 @@
   resolved "https://registry.yarnpkg.com/@babel/compat-data/-/compat-data-7.13.5.tgz#1e3b9043df6e3f5cfa750854adeb0c7a222d15a8"
   integrity sha512-+c3G3S8n5ziRyfLybmgm9Y6KgoCni+s0hkV0I5bIpGWhu8uqEQo/VGnETY8YS6PFwedAoXOqfe4FhrvbtsLu+Q==
 
+"@babel/compat-data@^7.13.12":
+  version "7.13.12"
+  resolved "https://registry.yarnpkg.com/@babel/compat-data/-/compat-data-7.13.12.tgz#a8a5ccac19c200f9dd49624cac6e19d7be1236a1"
+  integrity sha512-3eJJ841uKxeV8dcN/2yGEUy+RfgQspPEgQat85umsE1rotuquQ2AbIub4S6j7c50a2d+4myc+zSlnXeIHrOnhQ==
+
 "@babel/compat-data@^7.13.8":
   version "7.13.8"
   resolved "https://registry.yarnpkg.com/@babel/compat-data/-/compat-data-7.13.8.tgz#5b783b9808f15cef71547f1b691f34f8ff6003a6"
@@ -587,6 +592,15 @@
   resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.13.10.tgz#8f8f9bf7b3afa3eabd061f7a5bcdf4fec3c48409"
   integrity sha512-0s7Mlrw9uTWkYua7xWr99Wpk2bnGa0ANleKfksYAES8LpWH4gW1OUr42vqKNf0us5UQNfru2wPqMqRITzq/SIQ==
 
+"@babel/plugin-bugfix-v8-spread-parameters-in-optional-chaining@^7.13.12":
+  version "7.13.12"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-bugfix-v8-spread-parameters-in-optional-chaining/-/plugin-bugfix-v8-spread-parameters-in-optional-chaining-7.13.12.tgz#a3484d84d0b549f3fc916b99ee4783f26fabad2a"
+  integrity sha512-d0u3zWKcoZf379fOeJdr1a5WPDny4aOFZ6hlfKivgK0LY7ZxNfoaHL2fWwdGtHyVvra38FC+HVYkO+byfSA8AQ==
+  dependencies:
+    "@babel/helper-plugin-utils" "^7.13.0"
+    "@babel/helper-skip-transparent-expression-wrappers" "^7.12.1"
+    "@babel/plugin-proposal-optional-chaining" "^7.13.12"
+
 "@babel/plugin-proposal-async-generator-functions@^7.12.1":
   version "7.12.12"
   resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-async-generator-functions/-/plugin-proposal-async-generator-functions-7.12.12.tgz#04b8f24fd4532008ab4e79f788468fd5a8476566"
@@ -762,10 +776,10 @@
     "@babel/helper-skip-transparent-expression-wrappers" "^7.12.1"
     "@babel/plugin-syntax-optional-chaining" "^7.8.0"
 
-"@babel/plugin-proposal-optional-chaining@^7.13.8":
-  version "7.13.8"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-optional-chaining/-/plugin-proposal-optional-chaining-7.13.8.tgz#e39df93efe7e7e621841babc197982e140e90756"
-  integrity sha512-hpbBwbTgd7Cz1QryvwJZRo1U0k1q8uyBmeXOSQUjdg/A2TASkhR/rz7AyqZ/kS8kbpsNA80rOYbxySBJAqmhhQ==
+"@babel/plugin-proposal-optional-chaining@^7.13.12":
+  version "7.13.12"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-optional-chaining/-/plugin-proposal-optional-chaining-7.13.12.tgz#ba9feb601d422e0adea6760c2bd6bbb7bfec4866"
+  integrity sha512-fcEdKOkIB7Tf4IxrgEVeFC4zeJSTr78no9wTdBuZZbqF64kzllU0ybo2zrzm7gUQfxGhBgq4E39oRs8Zx/RMYQ==
   dependencies:
     "@babel/helper-plugin-utils" "^7.13.0"
     "@babel/helper-skip-transparent-expression-wrappers" "^7.12.1"
@@ -1414,15 +1428,16 @@
     "@babel/helper-create-regexp-features-plugin" "^7.12.13"
     "@babel/helper-plugin-utils" "^7.12.13"
 
-"@babel/preset-env@^7.13.10":
-  version "7.13.10"
-  resolved "https://registry.yarnpkg.com/@babel/preset-env/-/preset-env-7.13.10.tgz#b5cde31d5fe77ab2a6ab3d453b59041a1b3a5252"
-  integrity sha512-nOsTScuoRghRtUsRr/c69d042ysfPHcu+KOB4A9aAO9eJYqrkat+LF8G1yp1HD18QiwixT2CisZTr/0b3YZPXQ==
+"@babel/preset-env@^7.13.12":
+  version "7.13.12"
+  resolved "https://registry.yarnpkg.com/@babel/preset-env/-/preset-env-7.13.12.tgz#6dff470478290582ac282fb77780eadf32480237"
+  integrity sha512-JzElc6jk3Ko6zuZgBtjOd01pf9yYDEIH8BcqVuYIuOkzOwDesoa/Nz4gIo4lBG6K861KTV9TvIgmFuT6ytOaAA==
   dependencies:
-    "@babel/compat-data" "^7.13.8"
+    "@babel/compat-data" "^7.13.12"
     "@babel/helper-compilation-targets" "^7.13.10"
     "@babel/helper-plugin-utils" "^7.13.0"
     "@babel/helper-validator-option" "^7.12.17"
+    "@babel/plugin-bugfix-v8-spread-parameters-in-optional-chaining" "^7.13.12"
     "@babel/plugin-proposal-async-generator-functions" "^7.13.8"
     "@babel/plugin-proposal-class-properties" "^7.13.0"
     "@babel/plugin-proposal-dynamic-import" "^7.13.8"
@@ -1433,7 +1448,7 @@
     "@babel/plugin-proposal-numeric-separator" "^7.12.13"
     "@babel/plugin-proposal-object-rest-spread" "^7.13.8"
     "@babel/plugin-proposal-optional-catch-binding" "^7.13.8"
-    "@babel/plugin-proposal-optional-chaining" "^7.13.8"
+    "@babel/plugin-proposal-optional-chaining" "^7.13.12"
     "@babel/plugin-proposal-private-methods" "^7.13.0"
     "@babel/plugin-proposal-unicode-property-regex" "^7.12.13"
     "@babel/plugin-syntax-async-generators" "^7.8.4"
@@ -1481,7 +1496,7 @@
     "@babel/plugin-transform-unicode-escapes" "^7.12.13"
     "@babel/plugin-transform-unicode-regex" "^7.12.13"
     "@babel/preset-modules" "^0.1.4"
-    "@babel/types" "^7.13.0"
+    "@babel/types" "^7.13.12"
     babel-plugin-polyfill-corejs2 "^0.1.4"
     babel-plugin-polyfill-corejs3 "^0.1.3"
     babel-plugin-polyfill-regenerator "^0.1.2"
@@ -1687,6 +1702,15 @@
     lodash "^4.17.19"
     to-fast-properties "^2.0.0"
 
+"@babel/types@^7.13.12":
+  version "7.13.12"
+  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.13.12.tgz#edbf99208ef48852acdff1c8a681a1e4ade580cd"
+  integrity sha512-K4nY2xFN4QMvQwkQ+zmBDp6ANMbVNw6BbxWmYA4qNjhR9W+Lj/8ky5MEY2Me5r+B2c6/v6F53oMndG+f9s3IiA==
+  dependencies:
+    "@babel/helper-validator-identifier" "^7.12.11"
+    lodash "^4.17.19"
+    to-fast-properties "^2.0.0"
+
 "@blakeembrey/deque@^1.0.5":
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/@blakeembrey/deque/-/deque-1.0.5.tgz#f4fa17fc5ee18317ec01a763d355782c7b395eaf"