diff --git a/.github/workflows/send_slack_msg.yml b/.github/workflows/send_slack_msg.yml
deleted file mode 100644
index 74a34ca..0000000
--- a/.github/workflows/send_slack_msg.yml
+++ /dev/null
@@ -1,44 +0,0 @@
-name: Send Slack Msg
-
-on:
-    issues:
-        types: [opened]
-    pull_request:
-        types: [opened]
-
-jobs:
-    pr_send_slack_msg:
-        name: send slack message for PR
-        if: github.event_name == 'pull_request'
-        runs-on: ubuntu-latest
-        steps:
-            - name: send PR to slack workflow
-              id: slack
-              uses: slackapi/slack-github-action@v1.19.0
-              with:
-                  payload: |
-                      {
-                        "event_name": "${{ github.event_name }}",
-                        "event_html_url": "${{ github.event.pull_request.html_url }}",
-                        "repo_name": "${{ github.event.repository.name }}"
-                      }
-              env:
-                  SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL_SEND_MSG}}
-
-    issue_send_slack_msg:
-        name: send slack message for issue
-        if: github.event_name == 'issues'
-        runs-on: ubuntu-latest
-        steps:
-            - name: send issue to slack workflow
-              id: slack
-              uses: slackapi/slack-github-action@v1.19.0
-              with:
-                  payload: |
-                      {
-                        "event_name": "${{ github.event_name }}",
-                        "event_html_url": "${{ github.event.issue.html_url }}",
-                        "repo_name": "${{ github.event.repository.name }}"
-                      }
-              env:
-                  SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL_SEND_MSG }}