diff --git a/tsconfig.json b/tsconfig.json
index 9f57cf1..7c6e4af 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -5,7 +5,8 @@
         "declaration": true,
         "outDir": "dist",
         "baseUrl": ".",
-        "target": "es2018",
+        "target": "ES2018",
+        "lib": ["ES2018"],
         "allowJs": false,
         "strict": true,
         "noImplicitAny": true,