diff --git a/pyproject.toml b/pyproject.toml
index 4ae24df8..da327275 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -145,7 +145,7 @@ filterwarnings = [
     # see https://github.com/dateutil/dateutil/issues/1314
     "ignore:.*datetime.utcfromtimestamp\\(\\) is deprecated.*:DeprecationWarning:",
     # From anyio https://github.com/agronholm/anyio/pull/715
-    'ignore:Unclosed <MemoryObjectSendStream>:ResourceWarning',
+    'ignore:Unclosed <MemoryObjectSendStream:ResourceWarning',
 ]
 
 [tool.mypy]