diff --git a/pytest_sphinx.py b/pytest_sphinx.py
index 75d5674..54c8a56 100644
--- a/pytest_sphinx.py
+++ b/pytest_sphinx.py
@@ -520,7 +520,10 @@ def _find(self, tests, obj, name, module, source_lines, globs, seen):
                         seen,
                     )
 
-        finder = MockAwareDocTestFinder(parser=SphinxDocTestParser())
+        if sys.version_info < (3, 10):
+            finder = MockAwareDocTestFinder(parser=SphinxDocTestParser())
+        else:
+            finder = doctest.DocTestFinder(parser=SphinxDocTestParser())
 
         runner = SphinxDocTestRunner(
             verbose=0,