diff --git a/pytest.ini b/pytest.ini
index 9db630e5b1..990968d6f9 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -14,3 +14,5 @@ timeout = 30
 filterwarnings =
     always
     ignore:RedisGraph support is deprecated as of Redis Stack 7.2:DeprecationWarning
+    # Ignore a coverage warning when COVERAGE_CORE=sysmon for Pythons < 3.12.
+    ignore:sys.monitoring isn't available:coverage.exceptions.CoverageWarning