diff --git a/.github/workflows/redmine.yml b/.github/workflows/redmine.yml
deleted file mode 100644
index 10ad870b..00000000
--- a/.github/workflows/redmine.yml
+++ /dev/null
@@ -1,37 +0,0 @@
-name: Redmine
-on:
-  push:
-  pull_request:
-
-jobs:
-  one:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        ruby:
-          - v2.6.x
-        redmine:
-          - 4.1-stable
-
-    steps:
-      - uses: actions/checkout@v1
-
-      - name: Setup System
-        run: |
-          sudo apt-get update
-          sudo apt-get install libsqlite3-dev
-
-      - name: Set up Ruby
-        uses: actions/setup-ruby@v1
-        with:
-          ruby-version: ${{ matrix.ruby }}
-
-      - name: Update gems
-        run: |
-          gem update --system
-
-      - name: Redmine plugin test
-        uses: two-pack/redmine-plugin-test-action@v1
-        with:
-          plugin-name: redmine_dmsf
-          redmine_version: ${{ matrix.redmine }}