diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index e4479e9..abaafd4
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
   "test": "mocha"
   },
   "devDependencies": {
-    "chai": "^4.3.6",
+    "chai": "^6.2.1",
     "mocha": "^9.2.2"
   }
 }