diff --git a/.github/workflows/proto-docker.yml b/.github/workflows/proto-docker.yml
deleted file mode 100644
index e59eeda18bca..000000000000
--- a/.github/workflows/proto-docker.yml
+++ /dev/null
@@ -1,53 +0,0 @@
-name: Build & Push SDK Proto Builder
-on:
-  pull_request:
-  push:
-    branches:
-      - master
-    paths:
-      - "contrib/devtools/dockerfile"
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@master
-      - name: Prepare
-        id: prep
-        run: |
-          DOCKER_IMAGE=tendermintdev/sdk-proto-gen
-          VERSION=noop
-          if [[ $GITHUB_REF == refs/tags/* ]]; then
-            VERSION=${GITHUB_REF#refs/tags/}
-          elif [[ $GITHUB_REF == refs/heads/* ]]; then
-            VERSION=$(echo ${GITHUB_REF#refs/heads/} | sed -r 's#/+#-#g')
-            if [ "${{ github.event.repository.default_branch }}" = "$VERSION" ]; then
-              VERSION=latest
-            fi
-          fi
-          TAGS="${DOCKER_IMAGE}:${VERSION}"
-          echo ::set-output name=tags::${TAGS}
-
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@master
-        with:
-          platforms: all
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v1
-
-      - name: Login to DockerHub
-        if: ${{ github.event_name != 'pull_request' }}
-        uses: docker/login-action@v1
-        with:
-          username: ${{ secrets.DOCKERHUBTM_USERNAME }}
-          password: ${{ secrets.DOCKERHUBTM_TOKEN }}
-
-      - name: Publish to Docker Hub
-        uses: docker/build-push-action@v2
-        with:
-          context: ./contrib/devtools
-          file: ./contrib/devtools/dockerfile
-          platforms: linux/amd64,linux/arm64
-          push: ${{ github.event_name != 'pull_request' }}
-          tags: ${{ steps.prep.outputs.tags }}