diff --git a/backend/tests/pytest.ini b/backend/tests/pytest.ini
index a70c01e48..5f8f7d385 100644
--- a/backend/tests/pytest.ini
+++ b/backend/tests/pytest.ini
@@ -8,6 +8,12 @@ filterwarnings =
     # Filter warnings from async mocks - coroutines created by mocks that are
     # intentionally not awaited (expected behavior in unit tests)
     ignore:coroutine.*was never awaited:RuntimeWarning
+    # Starlette ≥ 1.1 fires its own StarletteDeprecationWarning at import
+    # time of starlette.testclient asking us to migrate to ``httpx2``.
+    # Upstream-internal migration; nothing actionable in Bambuddy and a
+    # full move to httpx2 is its own change. Match by message text so the
+    # filter holds regardless of which warning class starlette uses.
+    ignore:Using .httpx. with .starlette.testclient. is deprecated
 markers =
     unit: Unit tests (fast, no external deps)
     integration: Integration tests (slower, test full API)