diff --git a/action.js b/action.js
index 184dd93..6ac835d 100644
--- a/action.js
+++ b/action.js
@@ -3,7 +3,7 @@ import { readFileSync, mkdirSync, writeFileSync, readdirSync } from "fs";
 
 const libName = process.env.PWD.split("/").slice(-1)[0];
 const version = readFileSync("version", { encoding: "utf8" });
-const tarName = `${libName}-${version}.tgz`;
+const tarName = `${libName}-${version}.tar`;
 const repoBaseUrl = `${process.env.INPUT_REPO_URL}/${libName}/${version}`;
 const packageJsonUrls = [];