diff --git a/packages/.eslintrc.json b/packages/.eslintrc.json
index 15f8504a4536..c772c3d7c114 100644
--- a/packages/.eslintrc.json
+++ b/packages/.eslintrc.json
@@ -33,6 +33,23 @@
                 "component": true,
                 "html": true
             }
+        ],
+        "@typescript-eslint/ban-types": [
+            "error",
+            {
+                "types": {
+                    "bigint": "BigInt not supported until Safari 15.",
+                    "BigInt": "BigInt not supported until Safari 15."
+                },
+                "extendDefaults": false
+            }
+        ],
+        "no-restricted-syntax": [
+            "error",
+            {
+                "selector": "Literal[raw=/n$/]",
+                "message": "BigInt not supported until Safari 15."
+            }
         ]
     }
 }
diff --git a/tsconfig.json b/tsconfig.json
index 17aea484fff6..a90a47244315 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -16,7 +16,7 @@
   "compilerOptions": {
     /* Basic Options */
     "incremental": true /* Enable incremental compilation */,
-    "target": "ES2019" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */,
+    "target": "ES2020" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */,
     "module": "ESNext" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,
     "lib": ["DOM", "DOM.Iterable", "ES2020"] /* Specify library files to be included in the compilation. */,
     "allowJs": true /* Allow javascript files to be compiled. */,