diff --git a/.github/workflows/differential-shellcheck.yml b/.github/workflows/differential-shellcheck.yml
index 6072c526d8..89811edb95 100644
--- a/.github/workflows/differential-shellcheck.yml
+++ b/.github/workflows/differential-shellcheck.yml
@@ -31,8 +31,10 @@ jobs:
         uses: redhat-plumbers-in-action/differential-shellcheck@91e2582e40236f831458392d905578d680baa138
         with:
           # exclude all `.in` files because they may contain unsupported syntax, and they have to be preprocessed first
+          # TEMPORARY: exclude bash completion files, they would generate too many defects in Code scanning dashboard (600+)
           # exclude zsh completion files, zsh is not supported by ShellCheck
           exclude-path: |
             '**/*.in'
+            'shell-completion/bash/*'
             'shell-completion/zsh/*'
           token: ${{ secrets.GITHUB_TOKEN }}