diff --git a/.github/workflows/provenance.yml b/.github/workflows/provenance.yml
deleted file mode 100644
index ab7192a..0000000
--- a/.github/workflows/provenance.yml
+++ /dev/null
@@ -1,22 +0,0 @@
-name: ci
-
-on:
-  push:
-    branches:
-      - main
-  pull_request:
-    branches:
-      - main
-permissions:
-  contents: read
-jobs:
-  check-provenance:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-      - name: Check provenance downgrades
-        uses: danielroe/provenance-action@a5a718233ca12eff67651fcf29a030bbbd5b3ca1 # v0.1.0
-        with:
-          fail-on-provenance-change: true
diff --git a/package.json b/package.json
index 7064515..0076e5a 100644
--- a/package.json
+++ b/package.json
@@ -82,5 +82,5 @@
       "npx eslint --fix"
     ]
   },
-  "packageManager": "pnpm@10.13.1"
+  "packageManager": "pnpm@10.21.0"
 }
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index f1ccb74..2bf6361 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -1,2 +1,4 @@
 packages:
   - "playground"
+trustPolicy: no-downgrade
+