diff --git a/package.json b/package.json
index 262063d2..b9567f33 100644
--- a/package.json
+++ b/package.json
@@ -69,7 +69,7 @@
     "globals": "^16.0.0",
     "ignore": "^7.0.0",
     "import-fresh": "^3.3.0",
-    "is-language-code": "^3.1.0",
+    "is-language-code": "^5.0.0",
     "js-yaml": "^4.1.0",
     "json5": "^2.2.3",
     "lodash": "^4.17.21",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 2b1dff0a..f268118e 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -36,8 +36,8 @@ importers:
         specifier: ^3.3.0
         version: 3.3.0
       is-language-code:
-        specifier: ^3.1.0
-        version: 3.1.0
+        specifier: ^5.0.0
+        version: 5.1.0
       js-yaml:
         specifier: ^4.1.0
         version: 4.1.0
@@ -1280,6 +1280,10 @@ packages:
     resolution: {integrity: sha512-JQHZ2QMW6l3aH/j6xCqQThY/9OH4D/9ls34cgkUBiEeocRTU04tHfKPBsUK1PqZCUQM7GiA0IIXJSuXHI64Kbg==}
     engines: {node: '>=0.8'}
 
+  codsen-utils@1.7.0:
+    resolution: {integrity: sha512-J+fnmscIPihyeZGsMsy0wWHXDiA8+51KySw5uGqhKI+iwNSzOwe+sjU4J/BrQajMEBO6BPVx7qDq0cQHnUbrOw==}
+    engines: {node: '>=14.18.0'}
+
   color-convert@1.9.3:
     resolution: {integrity: sha512-QfAUtd+vFdAtFQcC8CCyYt1fYWxSqAiK2cSD6zDB8N3cpsEBAvRxp9zOGg6G/SHHJYAT88/az/IuDGALsNVbGg==}
 
@@ -1506,6 +1510,7 @@ packages:
   eslint-plugin-markdown@5.0.0:
     resolution: {integrity: sha512-kY2u9yDhzvfZ0kmRTsvgm3mTnvZgTSGIIPeHg3yesSx4R5CTCnITUjCPhzCD1MUhNcqHU5Tr6lzx+02EclVPbw==}
     engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
+    deprecated: Please use @eslint/markdown instead
     peerDependencies:
       eslint: '>=8'
 
@@ -1963,8 +1968,9 @@ packages:
   is-hexadecimal@1.0.4:
     resolution: {integrity: sha512-gyPJuv83bHMpocVYoqof5VDiZveEoGoFL8m3BXNb2VW8Xs+rz9kqO8LOQ5DH6EsuvilT1ApazU0pyl+ytbPtlw==}
 
-  is-language-code@3.1.0:
-    resolution: {integrity: sha512-zJdQ3QTeLye+iphMeK3wks+vXSRFKh68/Pnlw7aOfApFSEIOhYa8P9vwwa6QrImNNBMJTiL1PpYF0f4BxDuEgA==}
+  is-language-code@5.1.0:
+    resolution: {integrity: sha512-Jquw/HBh/DNN1jZ6mhS20T4uB+RpAV9K2IFgirVetL03Us9j8FpI3jmtk3n7NtpGB1LaIwpzwtQmQ1Kzdy9hFg==}
+    engines: {node: '>=14.18.0'}
 
   is-negative-zero@2.0.2:
     resolution: {integrity: sha512-dqJvarLawXsFbNDeJW7zAz8ItJ9cd28YufuuFzh0G8pNHjJMnY08Dv7sYX2uF5UpQOwieAeOExEYAWWfu7ZZUA==}
@@ -2617,9 +2623,6 @@ packages:
     resolution: {integrity: sha512-U9nH88a3fc/ekCF1l0/UP1IosiuIjyTh7hBvXVMHYgVcfGvt897Xguj2UOLDeI5BG2m7/uwyaLVT6fbtCwTyzw==}
     engines: {iojs: '>=1.0.0', node: '>=0.10.0'}
 
-  rfdc@1.3.1:
-    resolution: {integrity: sha512-r5a3l5HzYlIC68TpmYKlxWjmOP6wiPJ1vWv2HeLhNsRZMrCkxeqxiHlQ21oXmQ4F3SiryXBHhAD7JZqvOJjFmg==}
-
   rfdc@1.4.1:
     resolution: {integrity: sha512-q1b3N5QkRUWUl7iyylaaj3kOpIT0N2i9MqIEQXP73GVsN9cw3fdx8X63cEmWhJGi2PPCF23Ijp7ktmd39rawIA==}
 
@@ -4120,7 +4123,7 @@ snapshots:
 
   '@vue/devtools-shared@7.0.25':
     dependencies:
-      rfdc: 1.3.1
+      rfdc: 1.4.1
 
   '@vue/reactivity@3.4.21':
     dependencies:
@@ -4418,6 +4421,10 @@ snapshots:
 
   clone@1.0.4: {}
 
+  codsen-utils@1.7.0:
+    dependencies:
+      rfdc: 1.4.1
+
   color-convert@1.9.3:
     dependencies:
       color-name: 1.1.3
@@ -5146,9 +5153,9 @@ snapshots:
 
   is-hexadecimal@1.0.4: {}
 
-  is-language-code@3.1.0:
+  is-language-code@5.1.0:
     dependencies:
-      '@babel/runtime': 7.22.6
+      codsen-utils: 1.7.0
 
   is-negative-zero@2.0.2: {}
 
@@ -5834,8 +5841,6 @@ snapshots:
 
   reusify@1.0.4: {}
 
-  rfdc@1.3.1: {}
-
   rfdc@1.4.1: {}
 
   rimraf@3.0.2: