diff --git a/package-lock.json b/package-lock.json
index 0a4fd900..c556c2ae 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -26,7 +26,7 @@
         "fixclosure": "bin/fixclosure.js"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.2.3",
         "@types/lodash.difference": "^4.5.9",
         "@types/mocha": "^10.0.10",
         "@types/node": "^18.19.130",
@@ -531,11 +531,25 @@
       "license": "MIT"
     },
     "node_modules/@types/chai": {
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-      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.3.20.tgz",
-      "integrity": "sha512-/pC9HAB5I/xMlc5FP77qjCnI16ChlJfW0tGa0IUcFn38VJrTV6DeZ60NU5KZBtaOZqjdpwTWohz5HU1RrhiYxQ==",
+      "version": "5.2.3",
+      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-5.2.3.tgz",
+      "integrity": "sha512-Mw558oeA9fFbv65/y4mHtXDs9bPnFMZAL/jxdPFUpOHHIXX91mcgEHbS5Lahr+pwZFR8A7GQleRWeI6cGFC2UA==",
       "dev": true,
-      "license": "MIT"
+      "license": "MIT",
+      "dependencies": {
+        "@types/deep-eql": "*",
+        "assertion-error": "^2.0.1"
+      }
+    },
+    "node_modules/@types/chai/node_modules/assertion-error": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-2.0.1.tgz",
+      "integrity": "sha512-Izi8RQcffqCeNVgFigKli1ssklIbpHnCYc6AknXGYoB6grJqyeby7jv12JUQgmTAnIDnbck1uxksT4dzN3PWBA==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      }
     },
     "node_modules/@types/cli-color": {
       "version": "2.0.6",
@@ -543,6 +557,13 @@
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       "license": "MIT"
     },
+    "node_modules/@types/deep-eql": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/@types/deep-eql/-/deep-eql-4.0.2.tgz",
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+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@types/eslint": {
       "version": "8.56.12",
       "resolved": "https://registry.npmjs.org/@types/eslint/-/eslint-8.56.12.tgz",
@@ -622,7 +643,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
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       }
@@ -691,7 +711,6 @@
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       "dev": true,
       "license": "BSD-2-Clause",
-      "peer": true,
       "dependencies": {
         "@typescript-eslint/scope-manager": "7.18.0",
         "@typescript-eslint/types": "7.18.0",
@@ -927,7 +946,6 @@
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       "integrity": "sha512-cl669nCJTZBsL97OF4kUQm5g5hC2uihk0NxY3WENAC0TYdILVkAyHymAntgxGkl7K+t0cXIrH5siy5S4XkFycA==",
       "license": "MIT",
-      "peer": true,
       "bin": {
         "acorn": "bin/acorn"
       },
@@ -1279,7 +1297,6 @@
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       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "caniuse-lite": "^1.0.30001688",
         "electron-to-chromium": "^1.5.73",
@@ -2184,7 +2201,6 @@
       "deprecated": "This version is no longer supported. Please see https://eslint.org/version-support for other options.",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@eslint-community/eslint-utils": "^4.2.0",
         "@eslint-community/regexpp": "^4.6.1",
@@ -2426,7 +2442,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@rtsao/scc": "^1.1.0",
         "array-includes": "^3.1.8",
@@ -2729,7 +2744,6 @@
       "resolved": "https://registry.npmjs.org/estraverse/-/estraverse-5.3.0.tgz",
       "integrity": "sha512-MMdARuVEQziNTeJD8DgMqmhwR11BRQ/cBP+pLtYdSTnf3MIO8fFeiINEbX36ZdNlfU/7A9f3gUw49B3oQsvwBA==",
       "license": "BSD-2-Clause",
-      "peer": true,
       "engines": {
         "node": ">=4.0"
       }
@@ -5055,7 +5069,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "bin": {
         "prettier": "bin/prettier.cjs"
       },
@@ -6429,7 +6442,6 @@
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       "dev": true,
       "license": "Apache-2.0",
-      "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
diff --git a/package.json b/package.json
index b2d418ca..1049dc6b 100644
--- a/package.json
+++ b/package.json
@@ -42,7 +42,7 @@
     "lodash.difference": "^4.5.0"
   },
   "devDependencies": {
-    "@types/chai": "^4.3.20",
+    "@types/chai": "^5.2.3",
     "@types/lodash.difference": "^4.5.9",
     "@types/mocha": "^10.0.10",
     "@types/node": "^18.19.130",