diff --git a/package.json b/package.json
index a9bfde0..676ad34 100644
--- a/package.json
+++ b/package.json
@@ -158,7 +158,7 @@
     "@vates/toggle-scripts": "1.0.0",
     "@vitest/coverage-v8": "3.0.9",
     "@vitest/ui": "3.0.9",
-    "chai": "5.2.0",
+    "chai": "5.2.1",
     "convert-hrtime": "5.0.0",
     "cross-env": "7.0.3",
     "cspell": "9.2.0",
diff --git a/yarn.lock b/yarn.lock
index 4be2119..4a99f99 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1542,7 +1542,7 @@ __metadata:
     "@vates/toggle-scripts": "npm:1.0.0"
     "@vitest/coverage-v8": "npm:3.0.9"
     "@vitest/ui": "npm:3.0.9"
-    chai: "npm:5.2.0"
+    chai: "npm:5.2.1"
     convert-hrtime: "npm:5.0.0"
     cross-env: "npm:7.0.3"
     cspell: "npm:9.2.0"
@@ -3635,16 +3635,16 @@ __metadata:
   languageName: node
   linkType: hard
 
-"chai@npm:5.2.0, chai@npm:^5.2.0":
-  version: 5.2.0
-  resolution: "chai@npm:5.2.0"
+"chai@npm:5.2.1, chai@npm:^5.2.0":
+  version: 5.2.1
+  resolution: "chai@npm:5.2.1"
   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: 10/2ce03671c159c6a567bf1912756daabdbb7c075f3c0078f1b59d61da8d276936367ee696dfe093b49e1479d9ba93a6074c8e55d49791dddd8061728cdcad249e
+  checksum: 10/2d9b14c9bbb9b791641ecee0d74a53f34d2c86f05c10b5567041ed376177f87af9dc7f5398207fd2711affbfeb9f0f1f60e11bcaf021f78ef37b7c65a6d94e7d
   languageName: node
   linkType: hard