diff --git a/sentry_sdk/traces.py b/sentry_sdk/traces.py
index 221695b679..485be2a3e2 100644
--- a/sentry_sdk/traces.py
+++ b/sentry_sdk/traces.py
@@ -7,7 +7,6 @@
 sentry_sdk.init(_experiments={"trace_lifecycle": "stream"}).
 """
 
-import sys
 import uuid
 import warnings
 from datetime import datetime, timedelta, timezone
@@ -295,8 +294,6 @@ def __init__(
         self._start_profile()
         self._set_profile_id(get_profiler_id())
 
-        self._set_segment_attributes()
-
         self._start()
 
     def __repr__(self) -> str:
@@ -555,12 +552,6 @@ def _start_profile(self) -> None:
 
         self._continuous_profile = try_profile_lifecycle_trace_start()
 
-    def _set_segment_attributes(self) -> None:
-        if not self._is_segment():
-            return
-
-        self.set_attribute("process.command_args", sys.argv)
-
 
 class NoOpStreamedSpan(StreamedSpan):
     __slots__ = (
diff --git a/tests/tracing/test_span_streaming.py b/tests/tracing/test_span_streaming.py
index 849c0a5fb5..8859aa39c3 100644
--- a/tests/tracing/test_span_streaming.py
+++ b/tests/tracing/test_span_streaming.py
@@ -1504,46 +1504,6 @@ def test_profile_stops_when_segment_ends(
     assert get_profiler_id() is None, "profiler should have stopped"
 
 
-def test_default_attributes(sentry_init, capture_envelopes):
-    sentry_init(
-        server_name="test-server",
-        release="1.0.0",
-        traces_sample_rate=1.0,
-        _experiments={"trace_lifecycle": "stream"},
-    )
-
-    envelopes = capture_envelopes()
-
-    with sentry_sdk.traces.start_span(name="test"):
-        ...
-
-    sentry_sdk.get_client().flush()
-
-    assert len(envelopes) == 1
-    assert len(envelopes[0].items) == 1
-    item = envelopes[0].items[0]
-
-    assert item.type == "span"
-    assert item.headers == {
-        "type": "span",
-        "item_count": 1,
-        "content_type": "application/vnd.sentry.items.span.v2+json",
-    }
-    assert item.payload.json["items"][0]["attributes"] == {
-        "thread.id": {"value": mock.ANY, "type": "string"},
-        "thread.name": {"value": "MainThread", "type": "string"},
-        "process.command_args": {"value": mock.ANY, "type": "array"},
-        "sentry.segment.id": {"value": mock.ANY, "type": "string"},
-        "sentry.segment.name": {"value": "test", "type": "string"},
-        "sentry.sdk.name": {"value": "sentry.python", "type": "string"},
-        "sentry.sdk.version": {"value": mock.ANY, "type": "string"},
-        "server.address": {"value": "test-server", "type": "string"},
-        "sentry.environment": {"value": "production", "type": "string"},
-        "sentry.release": {"value": "1.0.0", "type": "string"},
-        "sentry.origin": {"value": "manual", "type": "string"},
-    }
-
-
 def test_transport_format(sentry_init, capture_envelopes):
     sentry_init(
         server_name="test-server",
@@ -1579,17 +1539,18 @@ def test_transport_format(sentry_init, capture_envelopes):
                 "is_segment": True,
                 "start_timestamp": mock.ANY,
                 "end_timestamp": mock.ANY,
-                "attributes": mock.ANY,
+                "attributes": {
+                    "thread.id": {"value": mock.ANY, "type": "string"},
+                    "thread.name": {"value": "MainThread", "type": "string"},
+                    "sentry.segment.id": {"value": mock.ANY, "type": "string"},
+                    "sentry.segment.name": {"value": "test", "type": "string"},
+                    "sentry.sdk.name": {"value": "sentry.python", "type": "string"},
+                    "sentry.sdk.version": {"value": mock.ANY, "type": "string"},
+                    "server.address": {"value": "test-server", "type": "string"},
+                    "sentry.environment": {"value": "production", "type": "string"},
+                    "sentry.release": {"value": "1.0.0", "type": "string"},
+                    "sentry.origin": {"value": "manual", "type": "string"},
+                },
             }
         ]
     }
-    for attribute, value in item.payload.json["items"][0]["attributes"].items():
-        assert isinstance(attribute, str)
-
-        assert isinstance(value, dict)
-        assert (
-            len(value) == 2
-        )  # technically, "unit" is also supported, but we don't currently set it anywhere
-        assert "value" in value
-        assert "type" in value
-        assert value["type"] in ("string", "boolean", "integer", "double", "array")