diff --git a/setup.cfg b/setup.cfg
index 79d85e0c..1215ea40 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,7 @@
 [tool:pytest]
 filterwarnings =
-    ignore:The frontend.Option(Parser)? class.*:DeprecationWarning::
+	ignore:The frontend.Option(Parser)? class.*:DeprecationWarning::
+	ignore:invalid escape sequence .*:DeprecationWarning:zhon:
 addopts = --reruns=0 --tb=short --no-header --showlocals --doctest-modules
 doctest_optionflags = ELLIPSIS NORMALIZE_WHITESPACE
 testpaths =