diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index 5edc624..6f2c056 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -39,6 +39,7 @@ jobs:
         id: CoverageReport
         if: success()  # テスト成功時のみ実行
         run: |
+          coverage-badge -o /temp/coverage.svg
           python - <<EOF
           from scripts.generate_coverage import GenerateCoverage
           generate_coverage = GenerateCoverage()
@@ -62,7 +63,7 @@ jobs:
       - name: Update Readme
         id: updateReadme
         run: |
-          coverage-badge -o coverage.svg
+          cat /temp/coverage.svg > coverage.svg
           echo "# Pytest Report" > README.md
           echo "" >> README.md
           echo "![test](coverage.svg)" >> README.md