diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index cd14bd7..123aece 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -6,6 +6,9 @@ jobs:
   build:
     runs-on: ubuntu-latest
 
+    permissions:
+      id-token: write # Required for NPM provenance via OIDC
+
     steps:
     - name: Checkout
       uses: actions/checkout@v3
diff --git a/package.json b/package.json
index deac541..27a69e0 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,8 @@
     "lib"
   ],
   "publishConfig": {
-    "access": "public"
+    "access": "public",
+    "provenance": true
   },
   "repository": {
     "type": "git",