diff --git a/changelog.md b/changelog.md
index b036fe0..b8fe983 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 2025-12-13 - 3.1.3 - fix(npmextra)
+Align npmextra.json package name with package.json (@git.zone/tsbuild)
+
+- Corrected npmPackagename in npmextra.json from "@gitzone/tsbuild" to "@git.zone/tsbuild" to match package.json and README
+- Metadata-only change: no code or API behavior affected
+
 ## 2025-11-28 - 3.1.2 - fix(TsBuild)
 Set default TypeScript target to ESNext
 
diff --git a/npmextra.json b/npmextra.json
index d402797..92d7bef 100644
--- a/npmextra.json
+++ b/npmextra.json
@@ -10,7 +10,7 @@
       "gitscope": "gitzone",
       "gitrepo": "tsbuild",
       "description": "A tool for compiling TypeScript files using the latest nightly features, offering flexible APIs and a CLI for streamlined development.",
-      "npmPackagename": "@gitzone/tsbuild",
+      "npmPackagename": "@git.zone/tsbuild",
       "license": "MIT",
       "keywords": [
         "TypeScript",
diff --git a/ts/00_commitinfo_data.ts b/ts/00_commitinfo_data.ts
index d886ab4..02c67fb 100644
--- a/ts/00_commitinfo_data.ts
+++ b/ts/00_commitinfo_data.ts
@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@git.zone/tsbuild',
-  version: '3.1.2',
+  version: '3.1.3',
   description: 'A tool for compiling TypeScript files using the latest nightly features, offering flexible APIs and a CLI for streamlined development.'
 }