diff --git a/lite_bootstrap/instruments/opentelemetry_instrument.py b/lite_bootstrap/instruments/opentelemetry_instrument.py
index 98cd858..c19348e 100644
--- a/lite_bootstrap/instruments/opentelemetry_instrument.py
+++ b/lite_bootstrap/instruments/opentelemetry_instrument.py
@@ -114,6 +114,9 @@ def _parse_remote_insecure_host(self, endpoint: str | None) -> str | None:
         if "://" not in raw:
             raw = f"//{raw}"
         parsed = urllib.parse.urlparse(raw)
+        # The gRPC exporter forces TLS for https whatever insecure says.
+        if parsed.scheme == "https":
+            return None
         host = (parsed.hostname or "").lower()
         if host in _LOCAL_HOSTS:
             return None
diff --git a/tests/instruments/test_opentelemetry_instrument.py b/tests/instruments/test_opentelemetry_instrument.py
index 6b0c72a..76d8896 100644
--- a/tests/instruments/test_opentelemetry_instrument.py
+++ b/tests/instruments/test_opentelemetry_instrument.py
@@ -231,6 +231,13 @@ def test_opentelemetry_config_no_warning_for_local_endpoints(endpoint: str) -> N
         OpenTelemetryConfig(opentelemetry_endpoint=endpoint, opentelemetry_insecure=True)
 
 
+@pytest.mark.parametrize("endpoint", ["https://collector.example.com:4317", "HTTPS://collector.example.com:4317"])
+def test_opentelemetry_config_no_warning_for_https_endpoints(endpoint: str) -> None:
+    with warnings.catch_warnings():
+        warnings.simplefilter("error")
+        OpenTelemetryConfig(opentelemetry_endpoint=endpoint, opentelemetry_metrics_endpoint=endpoint)
+
+
 @pytest.mark.parametrize(
     "endpoint",
     [