diff --git a/package.json b/package.json
index 12580cd0..15d47de3 100644
--- a/package.json
+++ b/package.json
@@ -66,6 +66,6 @@
     "rollup-plugin-commonjs": "10.1.0"
   },
   "dependencies": {
-    "acorn": "8.4.0"
+    "acorn": "8.9.0"
   }
 }