diff --git a/tsconfig-base.json b/tsconfig-base.json
index 9dad964b..a6e9d58f 100644
--- a/tsconfig-base.json
+++ b/tsconfig-base.json
@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "pretty": true,
-    "target": "es2017",
+    "target": "es6",
     "module": "commonjs",
     "moduleResolution": "node",