diff --git a/package-lock.json b/package-lock.json
index f671ee4..b6d0fcd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -23,7 +23,7 @@
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         "@iobroker/adapter-dev": "^1.2.0",
         "@iobroker/legacy-testing": "^1.0.12",
-        "chai": "^4.4.1",
+        "chai": "^5.1.1",
         "mocha": "^10.4.0"
       },
       "engines": {
@@ -1467,6 +1467,75 @@
         "mocha": "^10.4.0"
       }
     },
+    "node_modules/@iobroker/legacy-testing/node_modules/assertion-error": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-1.1.0.tgz",
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+      "dev": true,
+      "engines": {
+        "node": "*"
+      }
+    },
+    "node_modules/@iobroker/legacy-testing/node_modules/chai": {
+      "version": "4.4.1",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.4.1.tgz",
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+      "dev": true,
+      "dependencies": {
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+        "check-error": "^1.0.3",
+        "deep-eql": "^4.1.3",
+        "get-func-name": "^2.0.2",
+        "loupe": "^2.3.6",
+        "pathval": "^1.1.1",
+        "type-detect": "^4.0.8"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/@iobroker/legacy-testing/node_modules/check-error": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/check-error/-/check-error-1.0.3.tgz",
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+      "dependencies": {
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+      "engines": {
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+      "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-4.1.3.tgz",
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+      "resolved": "https://registry.npmjs.org/loupe/-/loupe-2.3.7.tgz",
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+      "dev": true,
+      "dependencies": {
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+      }
+    },
+    "node_modules/@iobroker/legacy-testing/node_modules/pathval": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/pathval/-/pathval-1.1.1.tgz",
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+      "dev": true,
+      "engines": {
+        "node": "*"
+      }
+    },
     "node_modules/@iobroker/types": {
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@@ -2238,12 +2307,12 @@
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+      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-2.0.1.tgz",
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       "dev": true,
       "engines": {
-        "node": "*"
+        "node": ">=12"
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@@ -2401,21 +2470,19 @@
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+      "version": "5.1.1",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-5.1.1.tgz",
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-        "loupe": "^2.3.6",
-        "pathval": "^1.1.1",
-        "type-detect": "^4.0.8"
+        "assertion-error": "^2.0.1",
+        "check-error": "^2.1.1",
+        "deep-eql": "^5.0.1",
+        "loupe": "^3.1.0",
+        "pathval": "^2.0.0"
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-        "node": ">=4"
+        "node": ">=12"
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@@ -2447,15 +2514,12 @@
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+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/check-error/-/check-error-2.1.1.tgz",
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-      "dependencies": {
-        "get-func-name": "^2.0.2"
-      },
       "engines": {
-        "node": "*"
+        "node": ">= 16"
       }
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     "node_modules/cliui": {
@@ -2550,13 +2614,10 @@
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-      "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-4.1.3.tgz",
-      "integrity": "sha512-WaEtAOpRA1MQ0eohqZjpGD8zdI0Ovsm8mmFhaDN8dvDZzyoUMcYDnf5Y6iu7HTXxf8JDS23qWa4a+hKCDyOPzw==",
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-5.0.1.tgz",
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-      },
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@@ -3608,9 +3669,9 @@
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-      "integrity": "sha512-zSMINGVYkdpYSOBmLi0D1Uo7JU9nVdQKrHxC8eYlV+9YKK9WePqAlL7lSlorG/U2Fw1w0hTBmaa/jrQ3UbPHtA==",
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+      "resolved": "https://registry.npmjs.org/loupe/-/loupe-3.1.1.tgz",
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@@ -4159,12 +4220,12 @@
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+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/pathval/-/pathval-2.0.0.tgz",
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       "dev": true,
       "engines": {
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+        "node": ">= 14.16"
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@@ -5835,6 +5896,62 @@
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         "mocha": "^10.4.0"
+      },
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+        "assertion-error": {
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+          "dev": true
+        },
+        "chai": {
+          "version": "4.4.1",
+          "resolved": "https://registry.npmjs.org/chai/-/chai-4.4.1.tgz",
+          "integrity": "sha512-13sOfMv2+DWduEU+/xbun3LScLoqN17nBeTLUsmDfKdoiC1fr0n9PU4guu4AhRcOVFk/sW8LyZWHuhWtQZiF+g==",
+          "dev": true,
+          "requires": {
+            "assertion-error": "^1.1.0",
+            "check-error": "^1.0.3",
+            "deep-eql": "^4.1.3",
+            "get-func-name": "^2.0.2",
+            "loupe": "^2.3.6",
+            "pathval": "^1.1.1",
+            "type-detect": "^4.0.8"
+          }
+        },
+        "check-error": {
+          "version": "1.0.3",
+          "resolved": "https://registry.npmjs.org/check-error/-/check-error-1.0.3.tgz",
+          "integrity": "sha512-iKEoDYaRmd1mxM90a2OEfWhjsjPpYPuQ+lMYsoxB126+t8fw7ySEO48nmDg5COTjxDI65/Y2OWpeEHk3ZOe8zg==",
+          "dev": true,
+          "requires": {
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+          }
+        },
+        "deep-eql": {
+          "version": "4.1.3",
+          "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-4.1.3.tgz",
+          "integrity": "sha512-WaEtAOpRA1MQ0eohqZjpGD8zdI0Ovsm8mmFhaDN8dvDZzyoUMcYDnf5Y6iu7HTXxf8JDS23qWa4a+hKCDyOPzw==",
+          "dev": true,
+          "requires": {
+            "type-detect": "^4.0.0"
+          }
+        },
+        "loupe": {
+          "version": "2.3.7",
+          "resolved": "https://registry.npmjs.org/loupe/-/loupe-2.3.7.tgz",
+          "integrity": "sha512-zSMINGVYkdpYSOBmLi0D1Uo7JU9nVdQKrHxC8eYlV+9YKK9WePqAlL7lSlorG/U2Fw1w0hTBmaa/jrQ3UbPHtA==",
+          "dev": true,
+          "requires": {
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+          }
+        },
+        "pathval": {
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+          "resolved": "https://registry.npmjs.org/pathval/-/pathval-1.1.1.tgz",
+          "integrity": "sha512-Dp6zGqpTdETdR63lehJYPeIOqpiNBNtc7BpWSLrOje7UaIsE5aY92r/AunQA7rsXvet3lrJ3JnZX29UPTKXyKQ==",
+          "dev": true
+        }
       }
     },
     "@iobroker/types": {
@@ -6462,9 +6579,9 @@
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-      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-1.1.0.tgz",
-      "integrity": "sha512-jgsaNduz+ndvGyFt3uSuWqvy4lCnIJiovtouQN5JZHOKCS2QuhEdbcQHFhVksz2N2U9hXJo8odG7ETyWlEeuDw==",
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-2.0.1.tgz",
+      "integrity": "sha512-Izi8RQcffqCeNVgFigKli1ssklIbpHnCYc6AknXGYoB6grJqyeby7jv12JUQgmTAnIDnbck1uxksT4dzN3PWBA==",
       "dev": true
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@@ -6596,18 +6713,16 @@
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-      "version": "4.4.1",
-      "resolved": "https://registry.npmjs.org/chai/-/chai-4.4.1.tgz",
-      "integrity": "sha512-13sOfMv2+DWduEU+/xbun3LScLoqN17nBeTLUsmDfKdoiC1fr0n9PU4guu4AhRcOVFk/sW8LyZWHuhWtQZiF+g==",
+      "version": "5.1.1",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-5.1.1.tgz",
+      "integrity": "sha512-pT1ZgP8rPNqUgieVaEY+ryQr6Q4HXNg8Ei9UnLUrjN4IA7dvQC5JB+/kxVcPNDHyBcc/26CXPkbNzq3qwrOEKA==",
       "dev": true,
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-        "deep-eql": "^4.1.3",
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-        "loupe": "^2.3.6",
-        "pathval": "^1.1.1",
-        "type-detect": "^4.0.8"
+        "assertion-error": "^2.0.1",
+        "check-error": "^2.1.1",
+        "deep-eql": "^5.0.1",
+        "loupe": "^3.1.0",
+        "pathval": "^2.0.0"
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@@ -6632,13 +6747,10 @@
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-      "dev": true,
-      "requires": {
-        "get-func-name": "^2.0.2"
-      }
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/check-error/-/check-error-2.1.1.tgz",
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+      "dev": true
     },
     "cliui": {
       "version": "8.0.1",
@@ -6706,13 +6818,10 @@
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-      "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-4.1.3.tgz",
-      "integrity": "sha512-WaEtAOpRA1MQ0eohqZjpGD8zdI0Ovsm8mmFhaDN8dvDZzyoUMcYDnf5Y6iu7HTXxf8JDS23qWa4a+hKCDyOPzw==",
-      "dev": true,
-      "requires": {
-        "type-detect": "^4.0.0"
-      }
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-5.0.1.tgz",
+      "integrity": "sha512-nwQCf6ne2gez3o1MxWifqkciwt0zhl0LO1/UwVu4uMBuPmflWM4oQ70XMqHqnBJA+nhzncaqL9HVL6KkHJ28lw==",
+      "dev": true
     },
     "deep-is": {
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@@ -7513,9 +7622,9 @@
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-      "integrity": "sha512-zSMINGVYkdpYSOBmLi0D1Uo7JU9nVdQKrHxC8eYlV+9YKK9WePqAlL7lSlorG/U2Fw1w0hTBmaa/jrQ3UbPHtA==",
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+      "resolved": "https://registry.npmjs.org/loupe/-/loupe-3.1.1.tgz",
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@@ -7917,9 +8026,9 @@
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+      "resolved": "https://registry.npmjs.org/pathval/-/pathval-2.0.0.tgz",
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diff --git a/package.json b/package.json
index 19982e2..0ea4eb1 100644
--- a/package.json
+++ b/package.json
@@ -53,7 +53,7 @@
     "@iobroker/adapter-dev": "^1.2.0",
     "@iobroker/legacy-testing": "^1.0.12",
     "mocha": "^10.4.0",
-    "chai": "^4.4.1"
+    "chai": "^5.1.1"
   },
   "bugs": {
     "url": "https://github.com/ioBroker/ioBroker.sayit/issues"