diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 6dc47c4..aeeb841 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -59,7 +59,7 @@ jobs:
         run: ./tool/coverage.sh 90
 
       - name: Upload coverage
-        uses: codecov/codecov-action@v6
+        uses: codecov/codecov-action@fb8b3582c8e4def4969c97caa2f19720cb33a72f  # v7.0.0
         with:
           files: coverage/lcov.info
           fail_ci_if_error: false