diff --git a/scripts/test-package-manager.mjs b/scripts/test-package-manager.mjs
index ca2c87e0c0..a61f17b51b 100644
--- a/scripts/test-package-manager.mjs
+++ b/scripts/test-package-manager.mjs
@@ -317,7 +317,7 @@ async function main() {
   if (!reuseTars) {
     await deletePriorBuildArtifacts();
     await deleteTars();
-    await $`pnpm prepare`;
+    await $({ preferLocal: true, shell: true })`pnpm prepare`;
     await buildAll(tag);
   }