diff --git a/http-fix-undefined-shift-in-EVUTIL_IS-_-helpers.patch b/http-fix-undefined-shift-in-EVUTIL_IS-_-helpers.patch
deleted file mode 100644
index 49e6c013b7e9ea4093e88223e0b64829ce68bdf0..0000000000000000000000000000000000000000
--- a/http-fix-undefined-shift-in-EVUTIL_IS-_-helpers.patch
+++ /dev/null
@@ -1,66 +0,0 @@
-From 37dbb3508099d49748453166c1ee9ef1603fcf3a Mon Sep 17 00:00:00 2001
-From: Azat Khuzhin <azat@libevent.org>
-Date: Thu, 25 Jun 2020 08:45:34 +0300
-Subject: [PATCH] http: fix undefined-shift in EVUTIL_IS*_ helpers
-
-evutil.c:2559:1: runtime error: left shift of 1 by 31 places cannot be represented in type 'int'
-    #0 0x4f2be0 in EVUTIL_ISXDIGIT_ libevent/evutil.c:2559:1
-    #1 0x4bd689 in regname_ok libevent/http.c:4838:7
-    #2 0x4bc16b in parse_authority libevent/http.c:4958:9
-    #3 0x4bb8b5 in evhttp_uri_parse_with_flags libevent/http.c:5103:7
-    #4 0x4bb762 in evhttp_uri_parse libevent/http.c:5050:9
-    #5 0x4b8f41 in evhttp_parse_query_impl libevent/http.c:3505:9
-    #6 0x4b8ed7 in evhttp_parse_query libevent/http.c:3569:9
-
-Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=23291
-Report: https://oss-fuzz.com/testcase-detail/5670743106125824
----
- evutil.c            |  2 +-
- test/regress_util.c | 11 +++++++++++
- 2 files changed, 12 insertions(+), 1 deletion(-)
-
-diff --git a/evutil.c b/evutil.c
-index eee970a4..93093b0e 100644
---- a/evutil.c
-+++ b/evutil.c
-@@ -2550,7 +2550,7 @@ static const unsigned char EVUTIL_TOLOWER_TABLE[256] = {
- #define IMPL_CTYPE_FN(name)						\
- 	int EVUTIL_##name##_(char c) {					\
- 		ev_uint8_t u = c;					\
--		return !!(EVUTIL_##name##_TABLE[(u >> 5) & 7] & (1 << (u & 31))); \
-+		return !!(EVUTIL_##name##_TABLE[(u >> 5) & 7] & (1U << (u & 31))); \
- 	}
- IMPL_CTYPE_FN(ISALPHA)
- IMPL_CTYPE_FN(ISALNUM)
-diff --git a/test/regress_util.c b/test/regress_util.c
-index 1459387a..f28238c8 100644
---- a/test/regress_util.c
-+++ b/test/regress_util.c
-@@ -988,6 +988,16 @@ end:
- 	;
- }
- 
-+static void
-+test_EVUTIL_IS_(void *arg)
-+{
-+	tt_int_op(EVUTIL_ISDIGIT_('0'), ==, 1);
-+	tt_int_op(EVUTIL_ISDIGIT_('a'), ==, 0);
-+	tt_int_op(EVUTIL_ISDIGIT_('\xff'), ==, 0);
-+end:
-+	;
-+}
-+
- static void
- test_evutil_getaddrinfo(void *arg)
- {
-@@ -1787,6 +1797,7 @@ struct testcase_t util_testcases[] = {
- 	{ "upcast", test_evutil_upcast, 0, NULL, NULL },
- 	{ "integers", test_evutil_integers, 0, NULL, NULL },
- 	{ "rand", test_evutil_rand, TT_FORK, NULL, NULL },
-+	{ "EVUTIL_IS_", test_EVUTIL_IS_, 0, NULL, NULL },
- 	{ "getaddrinfo", test_evutil_getaddrinfo, TT_FORK, NULL, NULL },
- 	{ "getaddrinfo_live", test_evutil_getaddrinfo_live, TT_FORK|TT_OFF_BY_DEFAULT, NULL, NULL },
- #ifdef _WIN32
--- 
-2.23.0
-
diff --git a/libevent-2.1.11-stable.tar.gz b/libevent-2.1.11-stable.tar.gz
deleted file mode 100644
index 8ca374c8bcc136836a5ce7fe772815a5f1c60838..0000000000000000000000000000000000000000
Binary files a/libevent-2.1.11-stable.tar.gz and /dev/null differ
diff --git a/libevent-2.1.12-stable.tar.gz b/libevent-2.1.12-stable.tar.gz
new file mode 100644
index 0000000000000000000000000000000000000000..4fcefff24f84dbda2650ae25085404f3f3382be3
Binary files /dev/null and b/libevent-2.1.12-stable.tar.gz differ
diff --git a/libevent.spec b/libevent.spec
index d70fd77e13d11675efb94ad7e59f5da04abc1381..245aedd572d1db1587f4abdcf173ef52a56ca352 100644
--- a/libevent.spec
+++ b/libevent.spec
@@ -1,8 +1,8 @@
 %global debug_package %{nil}
 
 Name:           libevent
-Version:        2.1.11
-Release:        3
+Version:        2.1.12
+Release:        1
 Summary:        An event notification library
 
 License:        BSD
@@ -13,7 +13,6 @@ BuildRequires: gcc doxygen openssl-devel libevent
 
 Patch0: libevent-nonettests.patch
 Patch1: http-add-callback-to-allow-server-to-decline-and-the.patch
-Patch2: http-fix-undefined-shift-in-EVUTIL_IS-_-helpers.patch
 
 %description
 Libevent additionally provides a sophisticated framework for buffered network IO, with support for sockets,
@@ -72,6 +71,9 @@ make check
 
 
 %changelog
+* Wed Aug 12 2020 Yeqing Peng <pengyeqing@huawei.com> - 2.1.12-1
+- update to 2.1.12
+
 * Wed Jul 1 2020 Liquor <lirui130@huawei.com> - 2.1.11-3
 - Type:bugfix
 - ID:NA