diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 538d918..ca713a5 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -157,7 +157,8 @@ jobs:
       - name: Run cargo-tarpaulin
         uses: actions-rs/tarpaulin@v0.1.3
         with:
-          args: '--features test-allocations -- --test-threads 1'
+          version: "0.18.0"
+          args: --features test-allocations --locked -- --test-threads 1
       - name: Upload to codecov.io
         uses: codecov/codecov-action@v4.0.1
         with: