diff --git a/pyproject.toml b/pyproject.toml
index 6c6ee465..fe683c28 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,7 +12,7 @@ dependencies = [
     "python-dateutil >=2.8.2",
     "typing-inspection >=0.4.0",
     "opentelemetry-api (>=1.33.1,<2.0.0)",
-    "opentelemetry-semantic-conventions (>=0.60b1,<0.61)",
+    "opentelemetry-semantic-conventions (>=0.60b1)",
     "jsonpath-python >=1.0.6", # required for speakeasy generated path with pagination
 ]
 
@@ -68,7 +68,7 @@ dev = [
     "pyyaml>=6.0.2,<7",
     "mypy==1.15.0",
     "msgpack>=1.1.0,<2.0.0",
-    "opentelemetry-instrumentation-httpx (>=0.60b1,<0.61)",
+    "opentelemetry-instrumentation-httpx (>=0.60b1)",
     "opentelemetry-sdk (>=1.33.1,<2.0.0)",
     "opentelemetry-exporter-otlp-proto-http (>=1.33.1,<2.0.0)",
     "pylint==3.2.3",
diff --git a/src/mistralai/client/_hooks/traceparent.py b/src/mistralai/client/_hooks/traceparent.py
index a8ddedf4..f500789e 100644
--- a/src/mistralai/client/_hooks/traceparent.py
+++ b/src/mistralai/client/_hooks/traceparent.py
@@ -12,6 +12,19 @@
     "execute_workflow_registration_v1_workflows_registrations__workflow_registration_id__execute_post",
 }
 
+_SAMPLED_FLAG = 0x01
+
+
+# https://www.w3.org/TR/trace-context/#traceparent-header
+def _is_sampled(traceparent: str) -> bool:
+    parts = traceparent.split("-")
+    if len(parts) != 4:
+        return False
+    try:
+        return bool(int(parts[3], 16) & _SAMPLED_FLAG)
+    except ValueError:
+        return False
+
 
 class TraceparentInjectionHook(BeforeRequestHook):
     """Inject a sampled traceparent on /execute requests so worker traces are always recorded."""
@@ -29,7 +42,7 @@ def before_request(
         carrier: Dict[str, str] = {}
         inject(carrier)
         traceparent = carrier.get("traceparent", "")
-        if not traceparent.endswith("-01"):
+        if not _is_sampled(traceparent):
             trace_id = random.getrandbits(128)
             span_id = random.getrandbits(64)
             traceparent = f"00-{trace_id:032x}-{span_id:016x}-01"
diff --git a/src/mistralai/extra/tests/test_traceparent_hook.py b/src/mistralai/extra/tests/test_traceparent_hook.py
index 8202f3d6..a5f45a72 100644
--- a/src/mistralai/extra/tests/test_traceparent_hook.py
+++ b/src/mistralai/extra/tests/test_traceparent_hook.py
@@ -86,7 +86,7 @@ def test_propagates_sampled_active_span(self):
 
         assert isinstance(result, httpx.Request)
         injected = result.headers["traceparent"]
-        self.assertTrue(injected.endswith("-01"))
+        self.assertTrue(int(injected.split("-")[3], 16) & 0x01)
         trace_id_hex = f"{span.get_span_context().trace_id:032x}"
         self.assertIn(trace_id_hex, injected)