diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index eb3aab63b2..0e41da591a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -138,7 +138,9 @@ jobs:
         dotnet test --no-build --configuration Release --collect:"XPlat Code Coverage" --logger "GitHubActions;summary.includeSkippedTests=true"
     - name: Upload coverage to codecov.io
       if: matrix.os == 'ubuntu-latest'
-      uses: codecov/codecov-action@v3
+      env:
+        CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+      uses: codecov/codecov-action@v4
       with:
         fail_ci_if_error: true
         verbose: true
diff --git a/src/JsonApiDotNetCore/CollectionExtensions.cs b/src/JsonApiDotNetCore/CollectionExtensions.cs
index f413898269..153347364a 100644
--- a/src/JsonApiDotNetCore/CollectionExtensions.cs
+++ b/src/JsonApiDotNetCore/CollectionExtensions.cs
@@ -5,6 +5,7 @@ namespace JsonApiDotNetCore;
 
 internal static class CollectionExtensions
 {
+    // Useless comment to trigger a build.
     [Pure]
     public static bool IsNullOrEmpty<T>([NotNullWhen(false)] this IEnumerable<T>? source)
     {