diff --git a/package-lock.json b/package-lock.json
index f090e209..668aeee1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,10 +8,9 @@
     "": {
       "name": "@y/y",
       "version": "14.0.0-rc.12",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
-        "lib0": "^1.0.0-rc.11"
+        "lib0": "^1.0.0-rc.12"
       },
       "devDependencies": {
         "@types/node": "^22.14.1",
@@ -3225,9 +3224,9 @@
       }
     },
     "node_modules/lib0": {
-      "version": "1.0.0-rc.11",
-      "resolved": "https://registry.npmjs.org/lib0/-/lib0-1.0.0-rc.11.tgz",
-      "integrity": "sha512-zJiiiPmk2JIvLWuE2HAHdk5fiy9v7NMYS6uCdFTUEBN8zFeVfYdPJ+QQNs1vcSOAGtEFH6cw34QWiTrF3zqsGw==",
+      "version": "1.0.0-rc.12",
+      "resolved": "https://registry.npmjs.org/lib0/-/lib0-1.0.0-rc.12.tgz",
+      "integrity": "sha512-zCJU7AuEdpWEFCKXjbX5iWmHgUSc9xlIOehMfW/RrPxf27yZ7VxflAVMhBAkmwhci78MANpJkcHGcXW1pB23iQ==",
       "license": "MIT",
       "bin": {
         "0ecdsa-generate-keypair": "src/bin/0ecdsa-generate-keypair.js",
diff --git a/tests/delta.tests.js b/tests/delta.tests.js
index 4c7055d5..9da0da98 100644
--- a/tests/delta.tests.js
+++ b/tests/delta.tests.js
@@ -134,7 +134,9 @@ export const testBasics = _tc => {
   // define a change: insert textual content and an object
   const childChange = delta.create().insert('hello').insert([{ my: 'object' }]).done()
   // merge changes
-  const mergedChanges = delta.create(delta.$deltaAny).apply(attrChange).apply(childChange).done()
+  const mergedChanges = delta.create(delta.$deltaAny)
+  mergedChanges.apply(attrChange)
+  mergedChanges.apply(childChange).done()
   console.log('merged changes: ', mergedChanges.toJSON())
   ytype.applyDelta(mergedChanges)
   // the observed change should equal the applied change