diff --git a/Lib/test/test_weakref.py b/Lib/test/test_weakref.py
index 36f529b..415d5eb 100644
--- a/Lib/test/test_weakref.py
+++ b/Lib/test/test_weakref.py
@@ -58,7 +58,7 @@
 
 
 @contextlib.contextmanager
-def collect_in_thread(period=0.0001):
+def collect_in_thread(period=0.001):
     """
     Ensure GC collections happen in a different thread, at a high frequency.
     """