diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index 5396c2b..19b2237 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -25,4 +25,4 @@ jobs:
       - name: Run tests with coverage report output
         run: make coverage
 
-      - uses: k1LoW/octocov-action@v4
+      - uses: k1LoW/octocov-action@v1