diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 89213ff..1f32dff 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,17 +17,42 @@ jobs:
         os: [ubuntu-latest, macos-latest, windows-latest]
 
     steps:
+      # Step 1: Check out the repository
       - uses: actions/checkout@v4
 
-      # This will run on all specified operating systems
+      # Step 2: Set up Julia (only on Ubuntu, as Julia setup might not be available for all OSes directly)
+      - name: Set up Julia
+        if: matrix.os == 'ubuntu-latest'
+        uses: julia-actions/setup-julia@v1.5
+        with:
+          version: '1.10'
+
+      # Step 3: Install dependencies (only run on Ubuntu)
+      - name: Install dependencies
+        if: matrix.os == 'ubuntu-latest'
+        run: julia -e 'using Pkg; Pkg.instantiate()'
+
+      # Step 4: Run tests with coverage (only run on Ubuntu)
+      - name: Run tests with coverage
+        if: matrix.os == 'ubuntu-latest'
+        run: julia --project=. -e 'using Pkg; Pkg.test(coverage=true)'
+
+      # Step 5: Upload coverage to Codecov (only run on Ubuntu)
+      - name: Upload coverage to Codecov
+        if: matrix.os == 'ubuntu-latest'
+        uses: codecov/codecov-action@v3
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}  # Only needed for private repos
+          files: ./coverage/lcov.info          # Path to your coverage report (adjust if needed)
+          flags: unittests
+          name: codecov-umbrella
+          fail_ci_if_error: true
+
+      # Step 6: Run additional commands on all specified operating systems
       - name: Run a one-line script
         run: echo Hello, world! Running on ${{ matrix.os }}
 
-      # Run multiple commands as part of the CI process
       - name: Run a multi-line script
         run: |
           echo Add other actions to build,
           echo test, and deploy your project on ${{ matrix.os }}
-
-
-