diff --git a/package-lock.json b/package-lock.json
index 166fdbf..27f44e2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -576,9 +576,9 @@
 			"dev": true
 		},
 		"@types/chai": {
-			"version": "4.3.6",
-			"resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.3.6.tgz",
-			"integrity": "sha512-VOVRLM1mBxIRxydiViqPcKn6MIxZytrbMpd6RJLIWKxUNr3zux8no0Oc7kJx0WAPIitgZ0gkrDS+btlqQpubpw==",
+			"version": "4.3.9",
+			"resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.3.9.tgz",
+			"integrity": "sha512-69TtiDzu0bcmKQv3yg1Zx409/Kd7r0b5F1PfpYJfSHzLGtB53547V4u+9iqKYsTu/O2ai6KTb0TInNpvuQ3qmg==",
 			"dev": true
 		},
 		"@types/chai-as-promised": {
diff --git a/package.json b/package.json
index f061646..89c021c 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
 	"devDependencies": {
 		"@iobroker/adapter-dev": "^1.2.0",
 		"@iobroker/testing": "^4.1.0",
-		"@types/chai": "^4.3.5",
+		"@types/chai": "^4.3.9",
 		"@types/chai-as-promised": "^7.1.6",
 		"@types/gulp": "^4.0.16",
 		"@types/mocha": "^10.0.2",