diff --git a/packages/rrweb-snapshot/tsconfig.json b/packages/rrweb-snapshot/tsconfig.json
index 879f459ae4..2766ca4a82 100644
--- a/packages/rrweb-snapshot/tsconfig.json
+++ b/packages/rrweb-snapshot/tsconfig.json
@@ -1,5 +1,6 @@
 {
   "compilerOptions": {
+    "target": "ES6",
     "composite": true,
     "module": "ESNext",
     "moduleResolution": "Node",