diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index db8a9438..f1440423 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -30,5 +30,5 @@ jobs:
         export CARGO_INCREMENTAL=0
         export RUSTFLAGS="-Zprofile -Ccodegen-units=1 -Cinline-threshold=0 -Clink-dead-code -Coverflow-checks=off -Cpanic=abort -Zpanic_abort_tests"
         export RUSTDOCFLAGS="-Zprofile -Ccodegen-units=1 -Cinline-threshold=0 -Clink-dead-code -Coverflow-checks=off -Cpanic=abort -Zpanic_abort_tests"
-        cargo test --release --verbose
+        cargo test --release --verbose +nightly
     - uses: actions-rs/grcov@v0.1