diff --git a/backport-Fix-a-reference-leak-if-a-thread-is-not-joined.patch b/backport-Fix-a-reference-leak-if-a-thread-is-not-joined.patch
deleted file mode 100644
index 2919676ecc6cae859c190f06e701f7b44dccb2e4..0000000000000000000000000000000000000000
--- a/backport-Fix-a-reference-leak-if-a-thread-is-not-joined.patch
+++ /dev/null
@@ -1,63 +0,0 @@
-From d3dcc92778807ae8f7ebe85178f36a29711cd478 Mon Sep 17 00:00:00 2001
-From: Victor Stinner <vstinner@redhat.com>
-Date: Mon, 19 Aug 2019 23:37:17 +0100
-Subject: [PATCH] bpo-37788: Fix a reference leak if a thread is not joined
- (GH-15228)
-
-Add threading.Thread.__del__() method to ensure that the thread state
-lock is removed from the _shutdown_locks list when a thread
-completes.
----
- Lib/test/test_threading.py                             |  8 ++++++++
- Lib/threading.py                                       | 10 ++++++++++
- .../Library/2019-08-12-17-21-10.bpo-37788.F0tR05.rst   |  1 +
- 3 files changed, 19 insertions(+)
- create mode 100644 Misc/NEWS.d/next/Library/2019-08-12-17-21-10.bpo-37788.F0tR05.rst
-
-diff --git a/Lib/test/test_threading.py b/Lib/test/test_threading.py
-index 7c16974c1630a..5e90627822f9f 100644
---- a/Lib/test/test_threading.py
-+++ b/Lib/test/test_threading.py
-@@ -761,6 +761,14 @@ def test_shutdown_locks(self):
-                 # Daemon threads must never add it to _shutdown_locks.
-                 self.assertNotIn(tstate_lock, threading._shutdown_locks)
- 
-+    def test_leak_without_join(self):
-+        # bpo-37788: Test that a thread which is not joined explicitly
-+        # does not leak. Test written for reference leak checks.
-+        def noop(): pass
-+        with support.wait_threads_exit():
-+            threading.Thread(target=noop).start()
-+            # Thread.join() is not called
-+
- 
- class ThreadJoinOnShutdown(BaseTestCase):
- 
-diff --git a/Lib/threading.py b/Lib/threading.py
-index 32a3d7c303362..67e1c4facfee2 100644
---- a/Lib/threading.py
-+++ b/Lib/threading.py
-@@ -806,6 +806,16 @@ class is implemented.
-         # For debugging and _after_fork()
-         _dangling.add(self)
- 
-+    def __del__(self):
-+        if not self._initialized:
-+            return
-+        lock = self._tstate_lock
-+        if lock is not None and not self.daemon:
-+            # ensure that self._tstate_lock is not in _shutdown_locks
-+            # if join() was not called explicitly
-+            with _shutdown_locks_lock:
-+                _shutdown_locks.discard(lock)
-+
-     def _reset_internal_locks(self, is_alive):
-         # private!  Called by _after_fork() to reset our internal locks as
-         # they may be in an invalid state leading to a deadlock or crash.
-diff --git a/Misc/NEWS.d/next/Library/2019-08-12-17-21-10.bpo-37788.F0tR05.rst b/Misc/NEWS.d/next/Library/2019-08-12-17-21-10.bpo-37788.F0tR05.rst
-new file mode 100644
-index 0000000000000..d9b1e82b92238
---- /dev/null
-+++ b/Misc/NEWS.d/next/Library/2019-08-12-17-21-10.bpo-37788.F0tR05.rst
-@@ -0,0 +1 @@
-+Fix a reference leak if a thread is not joined.
diff --git a/python3.spec b/python3.spec
index 0913cc41eac162a6ac1bbbd18349b3194eff8387..2ab29984087894c199c2e51f98f2495dd1c97c6f 100644
--- a/python3.spec
+++ b/python3.spec
@@ -3,7 +3,7 @@ Summary: Interpreter of the Python3 programming language
 URL: https://www.python.org/
 
 Version: 3.8.5
-Release: 5
+Release: 6
 License: Python
 
 %global branchversion 3.8
@@ -96,7 +96,6 @@ Patch189: 00189-use-rpm-wheels.patch
 Patch205: 00205-make-libpl-respect-lib64.patch
 Patch251: 00251-change-user-install-location.patch
 Patch252: CVE-2020-27619.patch
-Patch253: backport-Fix-a-reference-leak-if-a-thread-is-not-joined.patch
 Patch254: CVE-2021-3177.patch
 
 Provides: python%{branchversion} = %{version}-%{release}
@@ -191,7 +190,6 @@ rm Lib/ensurepip/_bundled/*.whl
 %patch205 -p1
 %patch251 -p1
 %patch252 -p1
-%patch253 -p1
 %patch254 -p1
 
 rm configure pyconfig.h.in
@@ -800,6 +798,12 @@ export BEP_GTDLIST="$BEP_GTDLIST_TMP"
 %{_mandir}/*/*
 
 %changelog
+* Wed Feb 24 2021 hehuazhen<hehuazhen@huawei.com> - 3.8.5-6
+- Type:bugfix
+- ID:NA
+- SUG:NA
+- DESC:revert fix a reference leak if a thread is not joined
+
 * Sun Feb 07 2021 shangyibin<shangyibin1@huawei.com> - 3.8.5-5
 - Type:cves
 - ID:CVE-2021-3177