diff --git a/.github/workflows/on-release.yml b/.github/workflows/on-release.yml
deleted file mode 100644
index 02f4da0..0000000
--- a/.github/workflows/on-release.yml
+++ /dev/null
@@ -1,19 +0,0 @@
-name: Publish Package to npmjs
-on:
-  release:
-    types: [created]
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-node@v3
-        with:
-          node-version: '18.x'
-          registry-url: 'https://registry.npmjs.org'
-          scope: '@vocdoni'
-      - run: yarn
-      - run: yarn build
-      - run: yarn publish
-        env:
-          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
diff --git a/.github/workflows/post-merge.yml b/.github/workflows/post-merge.yml
index de435b4..cfc2a3c 100644
--- a/.github/workflows/post-merge.yml
+++ b/.github/workflows/post-merge.yml
@@ -4,9 +4,10 @@ name: Post merge build step
 on:
   push:
     branches:
-      - master
-  pull_request:
-
+    - master
+    tags:
+    - '*'
+  pull_request: ~
 jobs:
   protobuf-build:
     runs-on: ubuntu-latest
@@ -28,3 +29,21 @@ jobs:
           commit_message: auto build commit
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Check if tag
+        id: check_tag
+        run: |
+          if [[ "${GITHUB_REF}" == refs/tags/* ]]; then
+            echo "is_tag=true" >> $GITHUB_ENV
+          else
+            echo "is_tag=false" >> $GITHUB_ENV
+          fi
+
+      - name: Publish to npm
+        if: env.is_tag == 'true'
+        run: |
+          yarn
+          yarn build
+          yarn publish
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
diff --git a/DEVELOPING.md b/DEVELOPING.md
index cf793b1..4f9c907 100644
--- a/DEVELOPING.md
+++ b/DEVELOPING.md
@@ -79,8 +79,5 @@ order to minimize the work. Just follow these steps:
 - Commit the changes: `git commit package.json -m "@vocdoni/proto 1.2.3"`
 - Tag the commit: `git tag v1.2.3`
 - Push the ref and the tag: `git push origin master v1.2.3`
-- Create a new github release: https://github.com/vocdoni/dvote-protobuf/releases/new?tag=v1.2.3
 
-As soon as the github release is done, the github action will take care of the rest automatically: build the npm package and publish it on https://www.npmjs.com/package/@vocdoni/proto
-
-TODO(gui): automate the release creation step, using the github action, triggered by the push of a tag
\ No newline at end of file
+The publish to npmjs should be triggered by GH actions as soon as the new tag is detected.
\ No newline at end of file