diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index d3e4809..0fd7143 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -32,7 +32,7 @@ jobs:
         run: make coverage-mock
 
       - name: Upload mock coverage
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with:
           name: lcov-mock
           path: lcov-mock.info
diff --git a/.gitignore b/.gitignore
index c23500e..3d54ea1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@ test/uarch-log
 test/UArchReplay_*.t.sol
 .DS_Store
 tests/*
+coverage/