diff --git a/package.json b/package.json
index 02515e5c..7374cbad 100644
--- a/package.json
+++ b/package.json
@@ -69,11 +69,11 @@
   ],
   "dependencies": {
     "globby": "14.0.1",
+    "js-yaml": "4.1.0",
     "jsonc-parser": "3.2.1",
     "markdownlint": "0.33.0",
     "markdownlint-cli2-formatter-default": "0.0.4",
-    "micromatch": "4.0.5",
-    "yaml": "2.3.4"
+    "micromatch": "4.0.5"
   },
   "devDependencies": {
     "@iktakahiro/markdown-it-katex": "4.0.1",
diff --git a/parsers/yaml-parse.js b/parsers/yaml-parse.js
index a036ca05..22ff335f 100644
--- a/parsers/yaml-parse.js
+++ b/parsers/yaml-parse.js
@@ -2,13 +2,13 @@
 
 "use strict";
 
-const yaml = require("yaml");
+const yaml = require("js-yaml");
 
 /**
  * Parses a YAML string, returning the corresponding object.
  * @param {string} text String to parse as YAML.
  * @returns {object} Corresponding object.
  */
-const yamlParse = (text) => yaml.parse(text);
+const yamlParse = (text) => yaml.load(text);
 
 module.exports = yamlParse;
diff --git a/test/markdownlint-cli2-test-cases.js b/test/markdownlint-cli2-test-cases.js
index 3c665f3b..966be160 100644
--- a/test/markdownlint-cli2-test-cases.js
+++ b/test/markdownlint-cli2-test-cases.js
@@ -353,7 +353,7 @@ const testCases = ({
     "name": "markdownlint-yaml-invalid",
     "args": [ ".*" ],
     "exitCode": 2,
-    "stderrRe": /'[^']*\.markdownlint\.yaml'.*Map keys must be unique/u
+    "stderrRe": /'[^']*\.markdownlint\.yaml'.*duplicated mapping key/u
   });
 
   testCase({
@@ -394,21 +394,22 @@ const testCases = ({
   testCase({
     "name": "markdownlint-cli2-yaml-mismatch",
     "args": [ "viewme.md" ],
-    "exitCode": 1
+    "exitCode": 2,
+    "stderrRe": /'[^']*\.markdownlint-cli2\.yaml'.*missed comma between flow collection entries/u
   });
 
   testCase({
     "name": "markdownlint-json-mismatch-config",
     "args": [ "--config", "../markdownlint-json-mismatch/.markdownlint.json", "viewme.md" ],
     "exitCode": 0,
-    "cwd": "no-config",
+    "cwd": "no-config"
   });
 
   testCase({
     "name": "markdownlint-yaml-mismatch-config",
     "args": [ "--config", "../markdownlint-yaml-mismatch/.markdownlint.yaml", "viewme.md" ],
     "exitCode": 0,
-    "cwd": "no-config",
+    "cwd": "no-config"
   });
 
   testCase({
@@ -416,14 +417,15 @@ const testCases = ({
     "args": [ "--config", "../markdownlint-cli2-jsonc-mismatch/.markdownlint-cli2.jsonc", "viewme.md" ],
     "exitCode": 2,
     "stderrRe": /'[^']*\.markdownlint-cli2\.jsonc'.*Unable to parse JSONC content/u,
-    "cwd": "no-config",
+    "cwd": "no-config"
   });
 
   testCase({
     "name": "markdownlint-cli2-yaml-mismatch-config",
     "args": [ "--config", "../markdownlint-cli2-yaml-mismatch/.markdownlint-cli2.yaml", "viewme.md" ],
-    "exitCode": 1,
-    "cwd": "no-config",
+    "exitCode": 2,
+    "stderrRe": /'[^']*\.markdownlint-cli2\.yaml'.*missed comma between flow collection entries/u,
+    "cwd": "no-config"
   });
 
   testCase({
@@ -469,7 +471,7 @@ const testCases = ({
     "name": "markdownlint-cli2-yaml-invalid",
     "args": [ ".*" ],
     "exitCode": 2,
-    "stderrRe": /'[^']*\.markdownlint-cli2\.yaml'.*Map keys must be unique/u
+    "stderrRe": /'[^']*\.markdownlint-cli2\.yaml'.*duplicated mapping key/u
   });
 
   testCase({
diff --git a/test/snapshots/markdownlint-cli2-test-exec.js.md b/test/snapshots/markdownlint-cli2-test-exec.js.md
index c24fe0f1..d7bc3566 100644
--- a/test/snapshots/markdownlint-cli2-test-exec.js.md
+++ b/test/snapshots/markdownlint-cli2-test-exec.js.md
@@ -1071,21 +1071,12 @@ Generated by [AVA](https://avajs.dev).
 > Snapshot 1
 
     {
-      exitCode: 1,
+      exitCode: 2,
       formatterCodeQuality: '',
       formatterJson: '',
       formatterJunit: '',
       formatterSarif: '',
-      stderr: `viewme.md:3:10 MD009/no-trailing-spaces Trailing spaces [Expected: 0 or 2; Actual: 1]␊
-      viewme.md:5 MD012/no-multiple-blanks Multiple consecutive blank lines [Expected: 1; Actual: 2]␊
-      viewme.md:6 MD025/single-title/single-h1 Multiple top-level headings in the same document [Context: "# Description"]␊
-      viewme.md:12:1 MD019/no-multiple-space-atx Multiple spaces after hash on atx style heading [Context: "##  Summary"]␊
-      viewme.md:14:14 MD047/single-trailing-newline Files should end with a single newline character␊
-      `,
       stdout: `markdownlint-cli2 vX.Y.Z (markdownlint vX.Y.Z)␊
-      Finding: viewme.md␊
-      Linting: 1 file(s)␊
-      Summary: 5 error(s)␊
       `,
     }
 
@@ -1144,21 +1135,12 @@ Generated by [AVA](https://avajs.dev).
 > Snapshot 1
 
     {
-      exitCode: 1,
+      exitCode: 2,
       formatterCodeQuality: '',
       formatterJson: '',
       formatterJunit: '',
       formatterSarif: '',
-      stderr: `viewme.md:3:10 MD009/no-trailing-spaces Trailing spaces [Expected: 0 or 2; Actual: 1]␊
-      viewme.md:5 MD012/no-multiple-blanks Multiple consecutive blank lines [Expected: 1; Actual: 2]␊
-      viewme.md:6 MD025/single-title/single-h1 Multiple top-level headings in the same document [Context: "# Description"]␊
-      viewme.md:12:1 MD019/no-multiple-space-atx Multiple spaces after hash on atx style heading [Context: "##  Summary"]␊
-      viewme.md:14:14 MD047/single-trailing-newline Files should end with a single newline character␊
-      `,
       stdout: `markdownlint-cli2 vX.Y.Z (markdownlint vX.Y.Z)␊
-      Finding: viewme.md␊
-      Linting: 1 file(s)␊
-      Summary: 5 error(s)␊
       `,
     }
 
diff --git a/test/snapshots/markdownlint-cli2-test-exec.js.snap b/test/snapshots/markdownlint-cli2-test-exec.js.snap
index ad3f1d97..23949622 100644
Binary files a/test/snapshots/markdownlint-cli2-test-exec.js.snap and b/test/snapshots/markdownlint-cli2-test-exec.js.snap differ
diff --git a/test/snapshots/markdownlint-cli2-test-fs.js.md b/test/snapshots/markdownlint-cli2-test-fs.js.md
index ef0733a2..68ded1ce 100644
--- a/test/snapshots/markdownlint-cli2-test-fs.js.md
+++ b/test/snapshots/markdownlint-cli2-test-fs.js.md
@@ -987,21 +987,12 @@ Generated by [AVA](https://avajs.dev).
 > Snapshot 1
 
     {
-      exitCode: 1,
+      exitCode: 2,
       formatterCodeQuality: '',
       formatterJson: '',
       formatterJunit: '',
       formatterSarif: '',
-      stderr: `viewme.md:3:10 MD009/no-trailing-spaces Trailing spaces [Expected: 0 or 2; Actual: 1]␊
-      viewme.md:5 MD012/no-multiple-blanks Multiple consecutive blank lines [Expected: 1; Actual: 2]␊
-      viewme.md:6 MD025/single-title/single-h1 Multiple top-level headings in the same document [Context: "# Description"]␊
-      viewme.md:12:1 MD019/no-multiple-space-atx Multiple spaces after hash on atx style heading [Context: "##  Summary"]␊
-      viewme.md:14:14 MD047/single-trailing-newline Files should end with a single newline character␊
-      `,
       stdout: `markdownlint-cli2 vX.Y.Z (markdownlint vX.Y.Z)␊
-      Finding: viewme.md␊
-      Linting: 1 file(s)␊
-      Summary: 5 error(s)␊
       `,
     }
 
@@ -1060,21 +1051,12 @@ Generated by [AVA](https://avajs.dev).
 > Snapshot 1
 
     {
-      exitCode: 1,
+      exitCode: 2,
       formatterCodeQuality: '',
       formatterJson: '',
       formatterJunit: '',
       formatterSarif: '',
-      stderr: `viewme.md:3:10 MD009/no-trailing-spaces Trailing spaces [Expected: 0 or 2; Actual: 1]␊
-      viewme.md:5 MD012/no-multiple-blanks Multiple consecutive blank lines [Expected: 1; Actual: 2]␊
-      viewme.md:6 MD025/single-title/single-h1 Multiple top-level headings in the same document [Context: "# Description"]␊
-      viewme.md:12:1 MD019/no-multiple-space-atx Multiple spaces after hash on atx style heading [Context: "##  Summary"]␊
-      viewme.md:14:14 MD047/single-trailing-newline Files should end with a single newline character␊
-      `,
       stdout: `markdownlint-cli2 vX.Y.Z (markdownlint vX.Y.Z)␊
-      Finding: viewme.md␊
-      Linting: 1 file(s)␊
-      Summary: 5 error(s)␊
       `,
     }
 
diff --git a/test/snapshots/markdownlint-cli2-test-fs.js.snap b/test/snapshots/markdownlint-cli2-test-fs.js.snap
index 91932d1b..f5351479 100644
Binary files a/test/snapshots/markdownlint-cli2-test-fs.js.snap and b/test/snapshots/markdownlint-cli2-test-fs.js.snap differ
diff --git a/test/snapshots/markdownlint-cli2-test-main.js.md b/test/snapshots/markdownlint-cli2-test-main.js.md
index 9dd484b5..5ab2ff73 100644
--- a/test/snapshots/markdownlint-cli2-test-main.js.md
+++ b/test/snapshots/markdownlint-cli2-test-main.js.md
@@ -1071,21 +1071,12 @@ Generated by [AVA](https://avajs.dev).
 > Snapshot 1
 
     {
-      exitCode: 1,
+      exitCode: 2,
       formatterCodeQuality: '',
       formatterJson: '',
       formatterJunit: '',
       formatterSarif: '',
-      stderr: `viewme.md:3:10 MD009/no-trailing-spaces Trailing spaces [Expected: 0 or 2; Actual: 1]␊
-      viewme.md:5 MD012/no-multiple-blanks Multiple consecutive blank lines [Expected: 1; Actual: 2]␊
-      viewme.md:6 MD025/single-title/single-h1 Multiple top-level headings in the same document [Context: "# Description"]␊
-      viewme.md:12:1 MD019/no-multiple-space-atx Multiple spaces after hash on atx style heading [Context: "##  Summary"]␊
-      viewme.md:14:14 MD047/single-trailing-newline Files should end with a single newline character␊
-      `,
       stdout: `markdownlint-cli2 vX.Y.Z (markdownlint vX.Y.Z)␊
-      Finding: viewme.md␊
-      Linting: 1 file(s)␊
-      Summary: 5 error(s)␊
       `,
     }
 
@@ -1144,21 +1135,12 @@ Generated by [AVA](https://avajs.dev).
 > Snapshot 1
 
     {
-      exitCode: 1,
+      exitCode: 2,
       formatterCodeQuality: '',
       formatterJson: '',
       formatterJunit: '',
       formatterSarif: '',
-      stderr: `viewme.md:3:10 MD009/no-trailing-spaces Trailing spaces [Expected: 0 or 2; Actual: 1]␊
-      viewme.md:5 MD012/no-multiple-blanks Multiple consecutive blank lines [Expected: 1; Actual: 2]␊
-      viewme.md:6 MD025/single-title/single-h1 Multiple top-level headings in the same document [Context: "# Description"]␊
-      viewme.md:12:1 MD019/no-multiple-space-atx Multiple spaces after hash on atx style heading [Context: "##  Summary"]␊
-      viewme.md:14:14 MD047/single-trailing-newline Files should end with a single newline character␊
-      `,
       stdout: `markdownlint-cli2 vX.Y.Z (markdownlint vX.Y.Z)␊
-      Finding: viewme.md␊
-      Linting: 1 file(s)␊
-      Summary: 5 error(s)␊
       `,
     }
 
diff --git a/test/snapshots/markdownlint-cli2-test-main.js.snap b/test/snapshots/markdownlint-cli2-test-main.js.snap
index 8352f63e..fd8077e7 100644
Binary files a/test/snapshots/markdownlint-cli2-test-main.js.snap and b/test/snapshots/markdownlint-cli2-test-main.js.snap differ