diff --git a/.github/workflows/test-contracts.yml b/.github/workflows/test-contracts.yml
index 4979fa94b..926c7febf 100644
--- a/.github/workflows/test-contracts.yml
+++ b/.github/workflows/test-contracts.yml
@@ -75,3 +75,8 @@ jobs:
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           path-to-lcov: ./packages/contracts/coverage/lcov.info
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v2
+        with:
+          files: ./packages/contracts/coverage/lcov.info
\ No newline at end of file
diff --git a/packages/contracts/.solcover.js b/packages/contracts/.solcover.js
index 16027b096..33feaa26f 100644
--- a/packages/contracts/.solcover.js
+++ b/packages/contracts/.solcover.js
@@ -3,7 +3,7 @@ const { accountsList } = require("./hardhatAccountsList2k.js");
 // https://hardhat.org/plugins/solidity-coverage.html#configuration
 // Link in providerOptions:
 // https://github.com/trufflesuite/ganache-core#options
-const accounts = accountsList.map(a => ({ secretKey: a.privateKey, balance: '0xc097ce7bc90715b34b9f1000000000' }))
+const accounts = accountsList.map(a => ({ secretKey: a.privateKey, balance: '0xc097ce7bc90715b34b9f1000000000' }));
 
 module.exports = {
   providerOptions: {
diff --git a/packages/contracts/hardhat.config.js b/packages/contracts/hardhat.config.js
index a8a748055..c4836a27f 100644
--- a/packages/contracts/hardhat.config.js
+++ b/packages/contracts/hardhat.config.js
@@ -68,6 +68,7 @@ module.exports = {
             gas: 10000000,  // tx gas limit
             blockGasLimit: 12500000, 
             gasPrice: 20000000000,
+            hardfork: "istanbul", // TODO: fix after unit tests are fixed!
         },
         mainnet: {
             url: alchemyUrl(),