diff --git a/.github/workflows/npm-publish.yml b/.github/workflows/npm-publish.yml
index 3501edb..bde15fc 100644
--- a/.github/workflows/npm-publish.yml
+++ b/.github/workflows/npm-publish.yml
@@ -16,8 +16,7 @@ jobs:
       - uses: actions/setup-node@v1
         with:
           node-version: 12
-      - run: npm ci
-      # - run: npm test
+      - run: yarn install --frozen-lockfile
 
   publish-npm:
     needs: build
@@ -28,7 +27,7 @@ jobs:
         with:
           node-version: 12
           registry-url: https://registry.npmjs.org/
-      - run: npm ci
+      - run: yarn install --frozen-lockfile
       - run: npm publish
         env:
           NODE_AUTH_TOKEN: ${{secrets.NPM_AUTH_TOKEN}}