diff --git a/Doc/library/sys.rst b/Doc/library/sys.rst
index 0069052..ae2dbf3 100644
--- a/Doc/library/sys.rst
+++ b/Doc/library/sys.rst
@@ -814,7 +814,7 @@
    Python.
 
    The highest possible limit is platform-dependent.  A user may need to set the
-   limit higher when she has a program that requires deep recursion and a platform
+   limit higher when they have a program that requires deep recursion and a platform
    that supports a higher limit.  This should be done with care, because a too-high
    limit can lead to a crash.