diff --git a/package.json b/package.json
index 6d575ce..e1416da 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
   "deprecated": false,
   "devDependencies": {
     "@iobroker/testing": "^4.1.0",
-    "@types/chai": "^4.3.8",
+    "@types/chai": "^4.3.9",
     "@types/chai-as-promised": "^7.1.6",
     "@types/gulp": "^4.0.15",
     "@types/mocha": "^10.0.2",