diff --git a/backport-CVE-2022-47629-Fix-an-integer-overflow-in-the-CRL-signature-parser.patch b/backport-CVE-2022-47629-Fix-an-integer-overflow-in-the-CRL-signature-parser.patch
deleted file mode 100644
index e078b40c2e60616a493b1d9ffccb87c9142179a1..0000000000000000000000000000000000000000
--- a/backport-CVE-2022-47629-Fix-an-integer-overflow-in-the-CRL-signature-parser.patch
+++ /dev/null
@@ -1,68 +0,0 @@
-From f61a5ea4e0f6a80fd4b28ef0174bee77793cf070 Mon Sep 17 00:00:00 2001
-From: Werner Koch <wk@gnupg.org>
-Date: Tue, 22 Nov 2022 16:36:46 +0100
-Subject: [PATCH] Fix an integer overflow in the CRL signature parser.
-
-* src/crl.c (parse_signature): N+N2 now checked for overflow.
-
-* src/ocsp.c (parse_response_extensions): Do not accept too large
-values.
-(parse_single_extensions): Ditto.
---
-
-The second patch is an extra safegourd not related to the reported
-bug.
-
-GnuPG-bug-id: 6284
-Reported-by: Joseph Surin, elttam
----
- src/crl.c  |  2 +-
- src/ocsp.c | 12 ++++++++++++
- 2 files changed, 13 insertions(+), 1 deletion(-)
-
-diff --git a/src/crl.c b/src/crl.c
-index 9f71c85..2e6ca29 100644
---- a/src/crl.c
-+++ b/src/crl.c
-@@ -1349,7 +1349,7 @@ parse_signature (ksba_crl_t crl)
-          && !ti.is_constructed) )
-     return gpg_error (GPG_ERR_INV_CRL_OBJ);
-   n2 = ti.nhdr + ti.length;
--  if (n + n2 >= DIM(tmpbuf))
-+  if (n + n2 >= DIM(tmpbuf) || (n + n2) < n)
-     return gpg_error (GPG_ERR_TOO_LARGE);
-   memcpy (tmpbuf+n, ti.buf, ti.nhdr);
-   err = read_buffer (crl->reader, tmpbuf+n+ti.nhdr, ti.length);
-diff --git a/src/ocsp.c b/src/ocsp.c
-index d4cba04..657d15f 100644
---- a/src/ocsp.c
-+++ b/src/ocsp.c
-@@ -721,6 +721,12 @@ parse_response_extensions (ksba_ocsp_t ocsp,
-               || memcmp (ocsp->nonce, data, ti.length))
-             ocsp->bad_nonce = 1;
-         }
-+      if (ti.length > (1<<24))
-+        {
-+          /* Bail out on much too large objects.  */
-+          err = gpg_error (GPG_ERR_BAD_BER);
-+          goto leave;
-+        }
-       ex = xtrymalloc (sizeof *ex + strlen (oid) + ti.length);
-       if (!ex)
-         {
-@@ -788,6 +794,12 @@ parse_single_extensions (struct ocsp_reqitem_s *ri,
-       err = parse_octet_string (&data, &datalen, &ti);
-       if (err)
-         goto leave;
-+      if (ti.length > (1<<24))
-+        {
-+          /* Bail out on much too large objects.  */
-+          err = gpg_error (GPG_ERR_BAD_BER);
-+          goto leave;
-+        }
-       ex = xtrymalloc (sizeof *ex + strlen (oid) + ti.length);
-       if (!ex)
-         {
--- 
-2.27.0
-
diff --git a/libksba-1.6.2.tar.bz2 b/libksba-1.6.2.tar.bz2
deleted file mode 100644
index 7ebe9ad8689d745f44e231d67ccdc93a8a5f9a05..0000000000000000000000000000000000000000
Binary files a/libksba-1.6.2.tar.bz2 and /dev/null differ
diff --git a/libksba-1.6.2.tar.bz2.sig b/libksba-1.6.2.tar.bz2.sig
deleted file mode 100644
index 4e099e0025f203b2c1639ddb92de344d3bdd6180..0000000000000000000000000000000000000000
Binary files a/libksba-1.6.2.tar.bz2.sig and /dev/null differ
diff --git a/libksba-1.6.3.tar.bz2 b/libksba-1.6.3.tar.bz2
new file mode 100644
index 0000000000000000000000000000000000000000..169936b10c959695b69c6e418c0e257577f515d5
Binary files /dev/null and b/libksba-1.6.3.tar.bz2 differ
diff --git a/libksba-1.6.3.tar.bz2.sig b/libksba-1.6.3.tar.bz2.sig
new file mode 100644
index 0000000000000000000000000000000000000000..bf75cc3977d7e52e32ae92a418046a3d19af15f1
Binary files /dev/null and b/libksba-1.6.3.tar.bz2.sig differ
diff --git a/libksba.spec b/libksba.spec
index 96f119d7af3543d75a78f104d110c915b04198f8..6d0aab20b30fcb0209a9a48207bf73f54088feba 100644
--- a/libksba.spec
+++ b/libksba.spec
@@ -1,14 +1,12 @@
 Name:     libksba
-Version:  1.6.2
-Release:  2
+Version:  1.6.3
+Release:  1
 Summary:  A library for X.509 and CMS
 License:  (LGPL-3.0+ or GPL-2.0+) and GPL-3.0+ and MIT
 URL:      https://www.gnupg.org/software/libksba/index.html
 Source0:  https://www.gnupg.org/ftp/gcrypt/libksba/libksba-%{version}.tar.bz2
 Source1:  https://www.gnupg.org/ftp/gcrypt/libksba/libksba-%{version}.tar.bz2.sig
 
-Patch1:   backport-CVE-2022-47629-Fix-an-integer-overflow-in-the-CRL-signature-parser.patch
-
 BuildRequires: gcc gawk libgpg-error-devel >= 1.8 libgcrypt-devel >= 1.2.0
 
 %description
@@ -67,6 +65,12 @@ make check
 %{_datadir}/info/ksba.info.gz
 
 %changelog
+* Tue Jan 17 2023 yixiangzhike <yixiangzhike007@163.com> - 1.6.3-1
+- Type:enhancement
+- ID:NA
+- SUG:NA
+- DESC:update version to 1.6.3
+
 * Thu Dec 22 2022 yixiangzhike <yixiangzhike007@163.com> - 1.6.2-2
 - Type:cve
 - ID:CVE-2022-47629