diff --git a/package.json b/package.json
index 7d626fc..13e6b80 100644
--- a/package.json
+++ b/package.json
@@ -82,7 +82,7 @@
     "astro": "^5.0.0",
     "astro-eslint-parser": ">=0.1.0",
     "benchmark": "^2.1.4",
-    "chai": "^5.0.0",
+    "chai": "^6.0.0",
     "env-cmd": "^10.1.0",
     "esbuild": "^0.25.0",
     "esbuild-register": "^3.3.3",