diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 66df880..1419952 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -201,6 +201,12 @@ jobs:
       - name: Upload coverage
         uses: actions/upload-artifact@v4
         if: always()
+        # Non-blocking: this is a convenience artifact, not a gate. When the account's
+        # artifact storage quota is full the upload fails with
+        # "Failed to CreateArtifact: Artifact storage quota has been hit" and marked the
+        # whole run red even though every test step passed. A quota problem is not a
+        # broken build.
+        continue-on-error: true
         with:
           name: coverage-report
           path: coverage.xml