diff --git a/package.json b/package.json
index fa12caba..847f2767 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "gulp-replace": "^1.1.4",
     "iobroker.web": "*",
     "mocha": "^10.2.0",
-    "chai": "^4.3.10"
+    "chai": "^5.0.0"
   },
   "bugs": {
     "url": "https://github.com/iobroker/iobroker.vis/issues"