diff --git a/.github/workflows/dev.yml b/.github/workflows/dev.yml
deleted file mode 100644
index 4ca10c7..0000000
--- a/.github/workflows/dev.yml
+++ /dev/null
@@ -1,51 +0,0 @@
-name: Dockcross CI update-toolchain
-
-on:
-  push:
-    branches:
-    - 'update-toolchain'
-  pull_request:
-    branches:
-    - 'update-toolchain'
-
-jobs:
-  base:
-    name: base
-    runs-on: ubuntu-20.04
-    steps:
-      - uses: actions/checkout@v2
-      - name: build
-        run: make base
-      - name: test
-        run: make base.test
-      - name: archive base
-        run: |
-            mkdir -p cache
-            docker save -o ./cache/base.tar dockcross/base:latest
-      - name: save base
-        uses: actions/upload-artifact@v2
-        with:
-          name: cache
-          path: ./cache
-          retention-days: 1
-
-  image:
-    name: ${{ matrix.arch_name }}
-    needs: base
-    runs-on: ubuntu-20.04
-    strategy:
-      fail-fast: false
-      matrix:
-        arch_name: [android-arm, android-arm64, android-x86, android-x86_64, web-wasm, linux-arm64, linux-arm64-musl, linux-armv5, linux-armv5-musl, linux-armv6, linux-armv6-musl, linux-armv7, linux-armv7a, linux-armv7l-musl, linux-s390x, linux-x64, linux-x86, manylinux1-x64, manylinux1-x86, manylinux2010-x64, manylinux2010-x86, manylinux2014-x64, manylinux2014-x86, manylinux2014-aarch64, windows-static-x64, windows-static-x64-posix, windows-static-x86, windows-shared-x64, windows-shared-x64-posix, windows-shared-x86]
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/download-artifact@v2
-        with:
-          name: cache
-          path: ./cache
-      - name: load base
-        run: docker load -i ./cache/base.tar
-      - name: build
-        run: make ${{ matrix.arch_name }}
-      - name: test
-        run: make ${{ matrix.arch_name }}.test