diff --git a/pytest.ini b/pytest.ini
index a55d72301..de1ecf267 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -2,6 +2,8 @@
 addopts = --numprocesses auto --pyargs
 # ResourceWarnings are ignored as errors, since they're raised at close
 # decodestring: https://github.com/rthalley/dnspython/issues/338
+# ignore our own TLS-SNI-01 warning
 filterwarnings =
     error
     ignore:decodestring:DeprecationWarning
+    ignore:TLS-SNI-01:DeprecationWarning
\ No newline at end of file