diff --git a/version-bump.mjs b/version-bump.mjs
index e16b0b1..83e3847 100644
--- a/version-bump.mjs
+++ b/version-bump.mjs
@@ -3,10 +3,10 @@ import { readFileSync, writeFileSync } from "fs";
 const targetVersion = process.env.npm_package_version;
 
 // read minAppVersion from manifest.json and bump version to target version
-let packageJson = JSON.parse(readFileSync("manifest.json", "utf8"));
-const { minAppVersion } = packageJson;
-packageJson.version = targetVersion;
-writeFileSync("manifest.json", JSON.stringify(packageJson, null, "\t"));
+let manifest = JSON.parse(readFileSync("manifest.json", "utf8"));
+const { minAppVersion } = manifest;
+manifest.version = targetVersion;
+writeFileSync("manifest.json", JSON.stringify(manifest, null, "\t"));
 
 // update versions.json with target version and minAppVersion from manifest.json
 let versions = JSON.parse(readFileSync("versions.json", "utf8"));