diff --git a/package.json b/package.json
index b5f4865..d269940 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
   "dependencies": {},
   "devDependencies": {
     "@substrate-system/debug": "^0.7.2",
-    "@substrate-system/tapzero": "^0.10.3",
+    "@substrate-system/tapzero": "^0.10.5",
     "@preact/preset-vite": "^2.9.0",
     "@typescript-eslint/eslint-plugin": "^8.0.0",
     "@typescript-eslint/parser": "^8.0.0",
diff --git a/test/index.ts b/test/index.ts
index 390f787..513d5ce 100644
--- a/test/index.ts
+++ b/test/index.ts
@@ -1,4 +1,4 @@
-import { test } from '@bicycle-codes/tapzero'
+import { test } from '@substrate-system/tapzero'
 import { example } from '../src/index.js'
 
 test('example', async t => {