diff --git a/__tests__/main.test.js b/__tests__/main.test.js
index d7771b4..a810e32 100644
--- a/__tests__/main.test.js
+++ b/__tests__/main.test.js
@@ -5,7 +5,7 @@ import { jest } from '@jest/globals'
 import fs from 'node:fs'
 import path from 'node:path'
 import { fileURLToPath } from 'node:url'
-import yaml from 'js-yaml'
+import { load as loadYaml } from 'js-yaml'
 
 import * as core from '../__fixtures__/core.js'
 
@@ -20,7 +20,7 @@ const actionYmlFile = path.join(dirname, '..', 'action.yml')
 
 describe('action', () => {
   const inputsDefaults = {}
-  const actionYml = yaml.load(fs.readFileSync(actionYmlFile))
+  const actionYml = loadYaml(fs.readFileSync(actionYmlFile))
   for (const [inputName, inputConfig] of Object.entries(actionYml.inputs)) {
     inputsDefaults[inputName] = inputConfig.default
   }
diff --git a/package-lock.json b/package-lock.json
index 35a5b4a..34dcf0a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -28,7 +28,7 @@
         "eslint-plugin-jest": "^29.0.1",
         "eslint-plugin-prettier": "^5.5.4",
         "jest": "^30.1.3",
-        "js-yaml": "^4.1.0",
+        "js-yaml": "^5.3.0",
         "make-coverage-badge": "^1.2.0",
         "prettier": "^3.6.2",
         "rollup": "^4.62.5",
@@ -1080,6 +1080,29 @@
         "url": "https://opencollective.com/eslint"
       }
     },
+    "node_modules/@eslint/eslintrc/node_modules/js-yaml": {
+      "version": "4.3.1",
+      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.3.1.tgz",
+      "integrity": "sha512-CY6crGq313MX8GkwvB7tzgp99vjQxY1++5y10/BKN/GUfHqWaOGQMNZkBvqSzsZKWk/ijwHlWzzkLulsGHhjWQ==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/puzrin"
+        },
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/nodeca"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "argparse": "^2.0.1"
+      },
+      "bin": {
+        "js-yaml": "bin/js-yaml.js"
+      }
+    },
     "node_modules/@eslint/js": {
       "version": "9.39.5",
       "resolved": "https://registry.npmjs.org/@eslint/js/-/js-9.39.5.tgz",
@@ -6550,9 +6573,9 @@
       "license": "MIT"
     },
     "node_modules/js-yaml": {
-      "version": "4.3.1",
-      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.3.1.tgz",
-      "integrity": "sha512-CY6crGq313MX8GkwvB7tzgp99vjQxY1++5y10/BKN/GUfHqWaOGQMNZkBvqSzsZKWk/ijwHlWzzkLulsGHhjWQ==",
+      "version": "5.3.0",
+      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-5.3.0.tgz",
+      "integrity": "sha512-muutsYr+e2+d3rTgUGslq5rxbBlUy3cJ61IsHag2QNDQV+7zXWjkUpmALIajhrlLlrgRUiymj6U3zUr/TMK84Q==",
       "dev": true,
       "funding": [
         {
@@ -6569,7 +6592,7 @@
         "argparse": "^2.0.1"
       },
       "bin": {
-        "js-yaml": "bin/js-yaml.js"
+        "js-yaml": "bin/js-yaml.mjs"
       }
     },
     "node_modules/jsesc": {
diff --git a/package.json b/package.json
index 3dc87c0..53df4ad 100644
--- a/package.json
+++ b/package.json
@@ -59,7 +59,7 @@
     "eslint-plugin-jest": "^29.0.1",
     "eslint-plugin-prettier": "^5.5.4",
     "jest": "^30.1.3",
-    "js-yaml": "^4.1.0",
+    "js-yaml": "^5.3.0",
     "make-coverage-badge": "^1.2.0",
     "prettier": "^3.6.2",
     "rollup": "^4.62.5",