diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 0cb999b..304c4ae 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -56,13 +56,13 @@ jobs:
           args: --all-features --all-targets -- -D warnings
 
   coverage:
-    name: Code Coverage
+    name: Code Coverage (+nightly)
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2.3.4
       - uses: actions-rs/toolchain@v1.0.7
         with:
-          toolchain: stable
+          toolchain: nightly
           override: true
       - name: Run cargo-tarpaulin
         uses: actions-rs/tarpaulin@v0.1.3