diff --git a/compiler/tsconfig.json b/compiler/tsconfig.json
index 0cc9811..822f29f 100644
--- a/compiler/tsconfig.json
+++ b/compiler/tsconfig.json
@@ -17,7 +17,7 @@
     "types": [],
     "typeRoots": [],
     "lib": [
-      "es2017"
+      "es2020"
     ]
   },
   "exclude": [