diff --git a/ChangeLog.md b/ChangeLog.md
index 690666358..f47b04e96 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -6,6 +6,7 @@
 
 General:
 
+- Updated lockfile-resolved `mocha` from 12.0.0-rc.6 to 12.0.0 to pick up CLI argument parsing fixes (negative numbers and quoted strings).
 - Updated the lockfile-resolved `@types/node` dev dependency from 26.2.0 to 26.4.0 for current Node.js API declarations; no application code changes were required, and filesystem extent coverage now validates sliced Buffer views.
 - Updated lockfile-resolved `axios` from 1.19.0 to 1.20.0 for hardened runtime option handling; no application code changes required.
 - Updated lockfile-resolved `lint-staged` from 17.3.0 to 17.4.1 to pick up `picomatch` 4.0.7 and `tinyexec` 1.3.0; moved `.lintstagedrc` flat-format coverage into `tests/packageScripts.test.ts`.
diff --git a/package-lock.json b/package-lock.json
index a1639dbae..1cf2d46f2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8254,9 +8254,9 @@
       "optional": true
     },
     "node_modules/mocha": {
-      "version": "12.0.0-rc.6",
-      "resolved": "https://registry.npmjs.org/mocha/-/mocha-12.0.0-rc.6.tgz",
-      "integrity": "sha512-JfQk/OfLIU+Ajm76oTYM5YZn7gHWUZZF9+V9FQhveAv4mnB5I0Qwmtqx6O8uWGwmK+rPaqCBPlXS5+mcmgYbKg==",
+      "version": "12.0.0",
+      "resolved": "https://registry.npmjs.org/mocha/-/mocha-12.0.0.tgz",
+      "integrity": "sha512-NYNh5IFt6WYqm9bi4601m7vix8MZdXC0DwS4gY6WhXO2RgJWhivhISVmq1oklCif18OSI9l+vx5Mdm5oh1XGiQ==",
       "dev": true,
       "license": "MIT",
       "dependencies": {