diff --git a/.github/workflows/broken-link-check.yml b/.github/workflows/broken-link-check.yml
index 79fe009e..9006cc5d 100644
--- a/.github/workflows/broken-link-check.yml
+++ b/.github/workflows/broken-link-check.yml
@@ -23,7 +23,7 @@ jobs:
 #        if: env.lychee_exit_code != 0 && github.ref == 'refs/heads/main'
         uses: slackapi/slack-github-action@v1.26.0
         env:
-          SLACK_WEBHOOK_URL: https://hooks.slack.com/triggers/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 # TODO: set as secret
+          SLACK_WEBHOOK_URL: "https://hooks.slack.com/triggers/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" # TODO: set as secret
         with:
           payload: |
             {