diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f1dd7d9..7d58f4a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,5 +1,8 @@
 name: Javascript SDK tests
 
+permissions:
+  contents: read
+
 on:
   push:
     branches: [main]
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 5ac74cf..b550ecb 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -1,4 +1,9 @@
 name: Publish to NPM
+
+permissions:
+  contents: read
+  id-token: write # for IODC
+
 on:
   release:
     types: [published]
@@ -13,6 +18,4 @@ jobs:
           registry-url: 'https://registry.npmjs.org'
       - run: npm ci
       - run: npm run build:dist
-      - run: npm publish --access public
-        env:
-          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+      - run: npm publish --provenance --access public