diff --git a/plugins/bigquery/dbt/adapters/bigquery/connections.py b/plugins/bigquery/dbt/adapters/bigquery/connections.py
index acbecfa84c2..a3ff5d0e6f1 100644
--- a/plugins/bigquery/dbt/adapters/bigquery/connections.py
+++ b/plugins/bigquery/dbt/adapters/bigquery/connections.py
@@ -594,9 +594,8 @@ def _is_retryable(error):
 _SANITIZE_LABEL_PATTERN = re.compile(r"[^a-z0-9_-]")
 
 
-def _sanitize_label(value: str, max_length: int = 63) -> str:
+def _sanitize_label(value: str) -> str:
     """Return a legal value for a BigQuery label."""
     value = value.strip().lower()
     value = _SANITIZE_LABEL_PATTERN.sub("_", value)
-    value = value[: max_length]
     return value
diff --git a/test/unit/test_bigquery_adapter.py b/test/unit/test_bigquery_adapter.py
index 5f317376191..7d42b1b6f64 100644
--- a/test/unit/test_bigquery_adapter.py
+++ b/test/unit/test_bigquery_adapter.py
@@ -2,6 +2,7 @@
 import decimal
 import json
 import re
+import pytest
 import unittest
 from contextlib import contextmanager
 from requests.exceptions import ConnectionError
@@ -23,7 +24,6 @@
 from dbt.logger import GLOBAL_LOGGER as logger  # noqa
 from dbt.context.providers import RuntimeConfigObject
 
-import pytest
 import google.cloud.bigquery
 
 from .utils import config_from_parts_or_dicts, inject_adapter, TestAdapterConversions
@@ -946,7 +946,6 @@ def test_convert_time_type(self):
 @pytest.mark.parametrize(
     ["input", "output"],
     [
-        ("a" * 64, "a" * 63),
         ("ABC", "abc"),
         ("a c", "a_c"),
         ("a ", "a"),