diff --git a/web/packages/extension/tools/sign_xpi.js b/web/packages/extension/tools/sign_xpi.js
index e10605040..9823a8498 100644
--- a/web/packages/extension/tools/sign_xpi.js
+++ b/web/packages/extension/tools/sign_xpi.js
@@ -9,7 +9,7 @@ async function sign(
     destination
 ) {
     const { signAddon } = await import("sign-addon");
-    const tempDir = require("temp-dir");
+    const tempDir = await import("temp-dir");
     const result = await signAddon({
         xpiPath: unsignedPath,
         version,