diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 57c213c..dd08ae8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,7 +20,7 @@ jobs:
       fail-fast: false
       matrix:
         # test against latest update of each major Java version, as well as specific updates of LTS versions:
-        java: [8, 9, 11, 12, 13, 14, 15, 16, 17, 18]
+        java: [8, 11, 17]
 
     steps:
     - uses: actions/checkout@v2
@@ -32,4 +32,7 @@ jobs:
       run: mvn test
       env:
         CA: ${{ secrets.CA }}
-    - uses: codecov/codecov-action@v3
+    - name: Upload Coverage Report
+      uses: codecov/codecov-action@v4
+      with:
+        token: ${{ secrets.CODECOV_TOKEN }} # required