diff --git a/mergify_cli/ci/junit.py b/mergify_cli/ci/junit.py
index f3c0b61f..589d1b8c 100644
--- a/mergify_cli/ci/junit.py
+++ b/mergify_cli/ci/junit.py
@@ -34,7 +34,6 @@ class InvalidJunitXMLError(Exception):
 
 
 async def junit_to_spans(
-    trace_id: int,
     xml_content: bytes,
     test_language: str | None = None,
     test_framework: str | None = None,
@@ -82,6 +81,8 @@ async def junit_to_spans(
 
     resource = resources.Resource.create(resource_attributes)
 
+    trace_id = ID_GENERATOR.generate_trace_id()
+
     for testsuite in testsuites:
         min_start_time = now
         suite_name = testsuite.get("name", "unnamed testsuite")
diff --git a/mergify_cli/ci/upload.py b/mergify_cli/ci/upload.py
index 17f0a9de..2c93e73c 100644
--- a/mergify_cli/ci/upload.py
+++ b/mergify_cli/ci/upload.py
@@ -57,9 +57,9 @@ def upload_spans(
 
 def connect_traces(spans: list[ReadableSpan]) -> None:
     if detector.get_ci_provider() == "github_actions" and spans:
-        trace_id = spans[0].context.trace_id
+        root_span_id = spans[0].context.span_id
         console.print(
-            f"::notice title=Mergify CI::MERGIFY_TRACE_ID={trace_id}",
+            f"::notice title=Mergify CI::MERGIFY_TEST_ROOT_SPAN_ID={root_span_id}",
             soft_wrap=True,
         )
 
@@ -74,13 +74,10 @@ async def upload(  # noqa: PLR0913, PLR0917
 ) -> None:
     spans = []
 
-    trace_id = junit.ID_GENERATOR.generate_trace_id()
-
     for filename in files:
         try:
             spans.extend(
                 await junit.junit_to_spans(
-                    trace_id,
                     pathlib.Path(filename).read_bytes(),
                     test_language=test_language,
                     test_framework=test_framework,
diff --git a/mergify_cli/tests/ci/test_junit.py b/mergify_cli/tests/ci/test_junit.py
index 2ab0c130..d0b10759 100644
--- a/mergify_cli/tests/ci/test_junit.py
+++ b/mergify_cli/tests/ci/test_junit.py
@@ -23,7 +23,6 @@ async def test_parse(
 ) -> None:
     filename = pathlib.Path(__file__).parent / "junit_example.xml"
     spans = await junit.junit_to_spans(
-        123,
         filename.read_bytes(),
         "python",
         "unittest",
diff --git a/mergify_cli/tests/ci/test_upload.py b/mergify_cli/tests/ci/test_upload.py
index d8dc989f..70a2f9c4 100644
--- a/mergify_cli/tests/ci/test_upload.py
+++ b/mergify_cli/tests/ci/test_upload.py
@@ -63,11 +63,13 @@ async def test_junit_upload(
 
     captured = capsys.readouterr()
     if env["GITHUB_ACTIONS"] == "true":
-        assert re.search(
-            r"^::notice title=Mergify CI::MERGIFY_TRACE_ID=\d+",
+        matched = re.search(
+            r"^::notice title=Mergify CI::MERGIFY_TEST_ROOT_SPAN_ID=(\d+)",
             captured.out,
             re.MULTILINE,
         )
+        assert matched is not None
+        assert int(matched.group(1)) > 0
 
     assert "🎉 File(s) uploaded" in captured.out