diff --git a/package-lock.json b/package-lock.json
index f7a91e7..9ccce92 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -21,7 +21,7 @@
         "@eslint/js": "^9.3.0",
         "@types/chai": "^5.0.0",
         "c8": "^10.1.3",
-        "chai": "^5.1.0",
+        "chai": "^6.0.0",
         "coveralls": "^3.1.1",
         "eslint": "^9.3.0",
         "eslint-plugin-mocha": "^11.0.0",
@@ -606,15 +606,6 @@
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-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-2.0.1.tgz",
-      "integrity": "sha512-Izi8RQcffqCeNVgFigKli1ssklIbpHnCYc6AknXGYoB6grJqyeby7jv12JUQgmTAnIDnbck1uxksT4dzN3PWBA==",
-      "dev": true,
-      "engines": {
-        "node": ">=12"
-      }
-    },
     "node_modules/async": {
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       "resolved": "https://registry.npmjs.org/async/-/async-2.6.4.tgz",
@@ -813,18 +804,11 @@
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-      "version": "5.2.1",
-      "resolved": "https://registry.npmjs.org/chai/-/chai-5.2.1.tgz",
-      "integrity": "sha512-5nFxhUrX0PqtyogoYOA8IPswy5sZFTOsBFl/9bNsmDLgsxYTzSZQJDPppDnZPTQbzSEm0hqGjWPzRemQCYbD6A==",
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-6.0.0.tgz",
+      "integrity": "sha512-a1Td/S+R4gegQ1aQhi9V2KP5uAQFaoZCRhKSw/UWDbwaB192HEP6eeczJKA/rSAwnEgRpNCdAdulDPhgvt3z4Q==",
       "dev": true,
       "license": "MIT",
-      "dependencies": {
-        "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": ">=18"
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@@ -853,16 +837,6 @@
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-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/check-error/-/check-error-2.1.1.tgz",
-      "integrity": "sha512-OAlb+T7V4Op9OwdkjmguYRqncdlx5JiofwOAUkmTF+jNdHwzTaTs4sRAGpzLF3oOz5xAyDGrPgeIDFQmDOTiJw==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">= 16"
-      }
-    },
     "node_modules/chokidar": {
       "version": "4.0.3",
       "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-4.0.3.tgz",
@@ -1039,15 +1013,6 @@
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-    "node_modules/deep-eql": {
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-      "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-5.0.1.tgz",
-      "integrity": "sha512-nwQCf6ne2gez3o1MxWifqkciwt0zhl0LO1/UwVu4uMBuPmflWM4oQ70XMqHqnBJA+nhzncaqL9HVL6KkHJ28lw==",
-      "dev": true,
-      "engines": {
-        "node": ">=6"
-      }
-    },
     "node_modules/deep-is": {
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/deep-is/-/deep-is-0.1.4.tgz",
@@ -1595,15 +1560,6 @@
         "node": "6.* || 8.* || >= 10.*"
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-    "node_modules/get-func-name": {
-      "version": "2.0.2",
-      "resolved": "https://registry.npmjs.org/get-func-name/-/get-func-name-2.0.2.tgz",
-      "integrity": "sha512-8vXOvuE167CtIc3OyItco7N/dpRtBbYOsPsXCz7X/PMnlGjYjSGuZJgM1Y7mmew7BKf9BqvLX2tnOVy1BBUsxQ==",
-      "dev": true,
-      "engines": {
-        "node": "*"
-      }
-    },
     "node_modules/get-intrinsic": {
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       "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.2.7.tgz",
@@ -2274,15 +2230,6 @@
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       }
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-    "node_modules/loupe": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/loupe/-/loupe-3.1.0.tgz",
-      "integrity": "sha512-qKl+FrLXUhFuHUoDJG7f8P8gEMHq9NFS0c6ghXG1J0rldmZFQZoNVv/vyirE9qwCIhWZDsvEFd1sbFu3GvRQFg==",
-      "dev": true,
-      "dependencies": {
-        "get-func-name": "^2.0.1"
-      }
-    },
     "node_modules/lru-cache": {
       "version": "10.4.3",
       "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-10.4.3.tgz",
@@ -2715,15 +2662,6 @@
         "url": "https://github.com/sponsors/isaacs"
       }
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-    "node_modules/pathval": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/pathval/-/pathval-2.0.0.tgz",
-      "integrity": "sha512-vE7JKRyES09KiunauX7nd2Q9/L7lhok4smP9RZTDeD4MVs72Dp2qNFVz39Nz5a0FVEW0BJR6C0DYrq6unoziZA==",
-      "dev": true,
-      "engines": {
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     "node_modules/performance-now": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/performance-now/-/performance-now-2.1.0.tgz",
diff --git a/package.json b/package.json
index 1ee4e54..f4baf33 100644
--- a/package.json
+++ b/package.json
@@ -64,7 +64,7 @@
     "@eslint/js": "^9.3.0",
     "@types/chai": "^5.0.0",
     "c8": "^10.1.3",
-    "chai": "^5.1.0",
+    "chai": "^6.0.0",
     "coveralls": "^3.1.1",
     "eslint": "^9.3.0",
     "eslint-plugin-mocha": "^11.0.0",