diff --git a/package.json b/package.json
index 77ce78f9e..c01a6d51c 100644
--- a/package.json
+++ b/package.json
@@ -90,7 +90,7 @@
     "build:esm": "npx tspc",
     "build:deno": "npx cpy ./src ./deno && npx esbuild ./src/utils/DashManifest.tsx --keep-names --format=esm --platform=neutral --target=es2020 --outfile=./deno/src/utils/DashManifest.js && npx cpy ./package.json ./deno && npx replace \".js';\" \".ts';\" ./deno -r && npx replace '.js\";' '.ts\";' ./deno -r && npx replace \"'./DashManifest.ts';\" \"'./DashManifest.js';\" ./deno -r && npx replace \"'jintr';\" \"'https://esm.sh/jintr';\" ./deno -r",
     "bundle:node": "npx esbuild ./dist/src/platform/node.js --bundle --target=node10 --keep-names --format=cjs --platform=node --outfile=./bundle/node.cjs --external:jintr --external:undici --external:linkedom --external:tslib --sourcemap --banner:js=\"/* eslint-disable */\"",
-    "bundle:browser": "npx esbuild ./dist/src/platform/web.js --banner:js=\"/* eslint-disable */\" --bundle --target=chrome58 --keep-names --format=esm --sourcemap --define:global=globalThis --conditions=module --outfile=./bundle/browser.js --platform=browser",
+    "bundle:browser": "npx esbuild ./dist/src/platform/web.js --banner:js=\"/* eslint-disable */\" --bundle --target=chrome63 --keep-names --format=esm --sourcemap --define:global=globalThis --conditions=module --outfile=./bundle/browser.js --platform=browser",
     "bundle:react-native": "npx esbuild ./dist/src/platform/react-native.js --bundle --target=es2020 --keep-names --format=esm --platform=neutral --sourcemap --define:global=globalThis --conditions=module --outfile=./bundle/react-native.js",
     "bundle:browser:prod": "npm run bundle:browser -- --outfile=./bundle/browser.min.js --minify",
     "bundle:cf-worker": "npx esbuild ./dist/src/platform/cf-worker.js --banner:js=\"/* eslint-disable */\" --bundle --target=es2020 --keep-names --format=esm --sourcemap --define:global=globalThis --conditions=module --outfile=./bundle/cf-worker.js --platform=node",
diff --git a/tsconfig.json b/tsconfig.json
index 1c817792b..8cccef51f 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -11,7 +11,7 @@
     // "disableReferencedProjectLoad": true,             /* Reduce the number of projects loaded automatically by TypeScript. */
 
     /* Language and Environment */
-    "target": "es2016",                                  /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
+    "target": "es2018",                                  /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
     "lib": ["ESNext", "DOM", "DOM.Iterable"],                                        /* Specify a set of bundled library declaration files that describe the target runtime environment. */
     "jsx": "react",                                /* Specify what JSX code is generated. */
     // "experimentalDecorators": true,                   /* Enable experimental support for TC39 stage 2 draft decorators. */