diff --git a/.github/workflows/unit-tests.yml b/.github/workflows/unit-tests.yml
index f751be6..76d64ac 100644
--- a/.github/workflows/unit-tests.yml
+++ b/.github/workflows/unit-tests.yml
@@ -25,5 +25,5 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - run: npm install
-      - run: npx hardhat coverage
+      - run: export MAINNET_RPC_URL=${{ secrets.MAINNET_RPC_URL }}; npx hardhat coverage
       - uses: codecov/codecov-action@v3
\ No newline at end of file