diff --git a/.github/scripts/fuzz.sh b/.github/scripts/fuzz.sh
index ec7c01d19..a53095652 100755
--- a/.github/scripts/fuzz.sh
+++ b/.github/scripts/fuzz.sh
@@ -8,12 +8,6 @@ TEST_TIME=${2:-5}
 echo Building corpus.
 cargo test -p $PACKAGE
 
-# We configure coverage after building a corpus to only include
-# fuzz tests in the coverage report.
-echo Configuring coverage.
-source <(cargo llvm-cov show-env --export-prefix)
-cargo llvm-cov clean --workspace
-
 # Gets the list of tests present in the package.
 TESTS=$(cargo test-fuzz --list -p $PACKAGE | head -n -3 | tail -n+9 | cat - <(echo \"--list\"]) | cat - | jq -r ".[]")
 
@@ -23,7 +17,4 @@ do
     set -x
     cargo test-fuzz --no-ui --exact -p "$PACKAGE" $test -- -V $TEST_TIME
     set +x
-done;
-
-echo Building coverage report.
-cargo llvm-cov report --lcov --output-path lcov.info
+done;
\ No newline at end of file
diff --git a/.github/workflows/fuzz.yml b/.github/workflows/fuzz.yml
index 0393cf7b3..5bb9088b9 100644
--- a/.github/workflows/fuzz.yml
+++ b/.github/workflows/fuzz.yml
@@ -31,8 +31,6 @@ jobs:
         uses: actions/checkout@v3
       - name: Install toolchain
         uses: dtolnay/rust-toolchain@stable
-        with:
-          components: llvm-tools-preview
       - uses: Swatinem/rust-cache@v2
         with:
           cache-on-failure: true
@@ -42,20 +40,12 @@ jobs:
         with:
           command: install
           args: cargo-test-fuzz cargo-afl
-      - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@cargo-llvm-cov
 
       - name: Run fuzz tests
         run: |
           ./.github/scripts/fuzz.sh ${{ matrix.target }}
         env:
           AFL_I_DONT_CARE_ABOUT_MISSING_CRASHES: 1
-      - name: Upload coverage data to codecov
-        uses: codecov/codecov-action@v3
-        with:
-          token: ${{ secrets.CODECOV_TOKEN }}
-          files: lcov.info
-          flags: fuzz-tests
 
   fuzz-success:
     if: always()
diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml
index c6bd6e28a..b274aec71 100644
--- a/.github/workflows/integration.yml
+++ b/.github/workflows/integration.yml
@@ -28,8 +28,6 @@ jobs:
         uses: actions/checkout@v3
       - name: Install toolchain
         uses: dtolnay/rust-toolchain@stable
-        with:
-          components: llvm-tools-preview
       - uses: Swatinem/rust-cache@v2
         with:
           cache-on-failure: true
@@ -47,23 +45,14 @@ jobs:
 
       - name: Install latest nextest release
         uses: taiki-e/install-action@nextest
-      - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@cargo-llvm-cov
 
       - name: Run tests
         run: |
-          cargo llvm-cov nextest --lcov --output-path lcov.info \
+          cargo nextest run \
             --locked --all-features --workspace --exclude examples --exclude ef-tests \
             --partition hash:${{ matrix.partition }}/${{ strategy.job-total }} \
             -E 'kind(test)'
 
-      - name: Upload coverage data to codecov
-        uses: codecov/codecov-action@v3
-        with:
-          token: ${{ secrets.CODECOV_TOKEN }}
-          files: lcov.info
-          flags: integration-tests
-
   sync:
     name: sync / 100k blocks
     # Only run sync tests in merge groups
diff --git a/.github/workflows/sanity.yml b/.github/workflows/sanity.yml
index 8b1e6f671..cd95457d9 100644
--- a/.github/workflows/sanity.yml
+++ b/.github/workflows/sanity.yml
@@ -25,8 +25,6 @@ jobs:
         uses: actions/checkout@v3
       - name: Install toolchain
         uses: dtolnay/rust-toolchain@stable
-        with:
-          components: llvm-tools-preview
       - uses: Swatinem/rust-cache@v2
         with:
           cache-on-failure: true
diff --git a/.github/workflows/unit.yml b/.github/workflows/unit.yml
index 3d398593b..17ff5f9a6 100644
--- a/.github/workflows/unit.yml
+++ b/.github/workflows/unit.yml
@@ -27,31 +27,20 @@ jobs:
         uses: actions/checkout@v3
       - name: Install toolchain
         uses: dtolnay/rust-toolchain@stable
-        with:
-          components: llvm-tools-preview
       - uses: Swatinem/rust-cache@v2
         with:
           cache-on-failure: true
 
       - name: Install latest nextest release
         uses: taiki-e/install-action@nextest
-      - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@cargo-llvm-cov
 
       - name: Run tests
         run: |
-          cargo llvm-cov nextest --lcov --output-path lcov.info \
+          cargo nextest run \
             --locked --all-features --workspace --exclude examples --exclude ef-tests  \
             --partition hash:${{ matrix.partition }}/${{ strategy.job-total }} \
             -E 'kind(lib)' -E 'kind(bin)' -E 'kind(proc-macro)'
 
-      - name: Upload coverage data to codecov
-        uses: codecov/codecov-action@v3
-        with:
-          token: ${{ secrets.CODECOV_TOKEN }}
-          files: lcov.info
-          flags: unit-tests
-
   eth-blockchain:
     name: ethereum / state tests (stable)
     runs-on: