diff --git a/tests/tsconfig.json b/tests/tsconfig.json
index cf5a05e2..154ae324 100644
--- a/tests/tsconfig.json
+++ b/tests/tsconfig.json
@@ -5,7 +5,7 @@
     "module": "commonjs",
     "allowSyntheticDefaultImports": true,
     "strict": true,
-    "lib": ["es6", "dom", "scripthost"],
+    "lib": ["es2020", "dom", "scripthost"],
     "moduleResolution": "node",
     "types": ["cypress"],
     "importsNotUsedAsValues": "remove"