diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index fb66d4d..0a1952c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -40,6 +40,7 @@ jobs:
             
             - name: Get Information
               id: info
+              shell: bash
               run: |
                 echo "copyright=Copyright (C) $(python setup.py --task get_year) 沉默の金" >> $GITHUB_OUTPUT
                 echo "version=$(python setup.py --task get_version)" >> $GITHUB_OUTPUT