diff --git a/tsconfig.json b/tsconfig.json
index ddcf783..ea765fa 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -10,7 +10,9 @@
     // "disableReferencedProjectLoad": true,             /* Reduce the number of projects loaded automatically by TypeScript. */
     /* Language and Environment */
     "target": "es2020", /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
-    // "lib": [],                                        /* Specify a set of bundled library declaration files that describe the target runtime environment. */
+    "lib": [
+      "ES2020"
+    ], /* Specify a set of bundled library declaration files that describe the target runtime environment. */
     // "jsx": "preserve",                                /* Specify what JSX code is generated. */
     // "libReplacement": true,                           /* Enable lib replacement. */
     // "experimentalDecorators": true,                   /* Enable experimental support for legacy experimental decorators. */