diff --git a/package.json b/package.json
index bc4dc1f..ebad740 100644
--- a/package.json
+++ b/package.json
@@ -74,7 +74,7 @@
     "@types/eslint__js": "8.42.3",
     "@types/mocha": "10.0.10",
     "@types/node": "22.18.8",
-    "chai": "5.3.3",
+    "chai": "6.2.1",
     "chai-jest-snapshot": "2.0.0",
     "eslint": "9.37.0",
     "eslint-config-prettier": "10.1.8",
diff --git a/yarn.lock b/yarn.lock
index 8520a48..efd1d4b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1981,13 +1981,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"assertion-error@npm:^2.0.1":
-  version: 2.0.1
-  resolution: "assertion-error@npm:2.0.1"
-  checksum: 10c0/bbbcb117ac6480138f8c93cf7f535614282dea9dc828f540cdece85e3c665e8f78958b96afac52f29ff883c72638e6a87d469ecc9fe5bc902df03ed24a55dba8
-  languageName: node
-  linkType: hard
-
 "babel-plugin-polyfill-corejs2@npm:^0.4.10":
   version: 0.4.13
   resolution: "babel-plugin-polyfill-corejs2@npm:0.4.13"
@@ -2120,16 +2113,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"chai@npm:5.3.3":
-  version: 5.3.3
-  resolution: "chai@npm:5.3.3"
-  dependencies:
-    assertion-error: "npm:^2.0.1"
-    check-error: "npm:^2.1.1"
-    deep-eql: "npm:^5.0.1"
-    loupe: "npm:^3.1.0"
-    pathval: "npm:^2.0.0"
-  checksum: 10c0/b360fd4d38861622e5010c2f709736988b05c7f31042305fa3f4e9911f6adb80ccfb4e302068bf8ed10e835c2e2520cba0f5edc13d878b886987e5aa62483f53
+"chai@npm:6.2.1":
+  version: 6.2.1
+  resolution: "chai@npm:6.2.1"
+  checksum: 10c0/0c2d84392d7c6d44ca5d14d94204f1760e22af68b83d1f4278b5c4d301dabfc0242da70954dd86b1eda01e438f42950de6cf9d569df2103678538e4014abe50b
   languageName: node
   linkType: hard
 
@@ -2154,13 +2141,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"check-error@npm:^2.1.1":
-  version: 2.1.1
-  resolution: "check-error@npm:2.1.1"
-  checksum: 10c0/979f13eccab306cf1785fa10941a590b4e7ea9916ea2a4f8c87f0316fc3eab07eabefb6e587424ef0f88cbcd3805791f172ea739863ca3d7ce2afc54641c7f0e
-  languageName: node
-  linkType: hard
-
 "chokidar@npm:^4.0.1":
   version: 4.0.3
   resolution: "chokidar@npm:4.0.3"
@@ -2287,13 +2267,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"deep-eql@npm:^5.0.1":
-  version: 5.0.2
-  resolution: "deep-eql@npm:5.0.2"
-  checksum: 10c0/7102cf3b7bb719c6b9c0db2e19bf0aa9318d141581befe8c7ce8ccd39af9eaa4346e5e05adef7f9bd7015da0f13a3a25dcfe306ef79dc8668aedbecb658dd247
-  languageName: node
-  linkType: hard
-
 "deep-is@npm:^0.1.3":
   version: 0.1.4
   resolution: "deep-is@npm:0.1.4"
@@ -3095,13 +3068,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"loupe@npm:^3.1.0":
-  version: 3.1.3
-  resolution: "loupe@npm:3.1.3"
-  checksum: 10c0/f5dab4144254677de83a35285be1b8aba58b3861439ce4ba65875d0d5f3445a4a496daef63100ccf02b2dbc25bf58c6db84c9cb0b96d6435331e9d0a33b48541
-  languageName: node
-  linkType: hard
-
 "lru-cache@npm:^10.2.0":
   version: 10.4.3
   resolution: "lru-cache@npm:10.4.3"
@@ -3347,13 +3313,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"pathval@npm:^2.0.0":
-  version: 2.0.0
-  resolution: "pathval@npm:2.0.0"
-  checksum: 10c0/602e4ee347fba8a599115af2ccd8179836a63c925c23e04bd056d0674a64b39e3a081b643cc7bc0b84390517df2d800a46fcc5598d42c155fe4977095c2f77c5
-  languageName: node
-  linkType: hard
-
 "picocolors@npm:^1.1.1":
   version: 1.1.1
   resolution: "picocolors@npm:1.1.1"
@@ -3772,7 +3731,7 @@ __metadata:
     "@types/eslint__js": "npm:8.42.3"
     "@types/mocha": "npm:10.0.10"
     "@types/node": "npm:22.18.8"
-    chai: "npm:5.3.3"
+    chai: "npm:6.2.1"
     chai-jest-snapshot: "npm:2.0.0"
     eslint: "npm:9.37.0"
     eslint-config-prettier: "npm:10.1.8"