diff --git a/package/openconnect/0001-Fix-implicit-declaration-of-function-malloc.patch b/package/openconnect/0001-Fix-implicit-declaration-of-function-malloc.patch
deleted file mode 100644
index 4732c4fb5e..0000000000
--- a/package/openconnect/0001-Fix-implicit-declaration-of-function-malloc.patch
+++ /dev/null
@@ -1,40 +0,0 @@
-From 5185f640045df2b4f8ee7f028fc59e6f02fdf367 Mon Sep 17 00:00:00 2001
-From: Brahmajit Das <brahmajit.xyz@gmail.com>
-Date: Mon, 29 Jan 2024 23:28:53 +0530
-Subject: [PATCH] Fix implicit declaration of function 'malloc'
-
-First observed on Gentoo Linux with GCC 14. This is due to GCC 14
-enabling -Werror=implicit-function-declaration by default.
-Thus resulting in errors such as:
-
-openconnect-internal.h: In function 'alloc_pkt':
-openconnect-internal.h:911:27: error: implicit declaration of function 'malloc' [-Werror=implicit-function-declaration]
-  911 |         struct pkt *pkt = malloc(alloc_len);
-      |                           ^~~~~~
-
-Plese refer gentoo bug: https://bugs.gentoo.org/923173
-Signed-off-by: Brahmajit Das <brahmajit.xyz@gmail.com>
-
-Upstream: https://gitlab.com/openconnect/openconnect/-/commit/5185f640045df2b4f8ee7f028fc59e6f02fdf367
-
-Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
-[rebased for 9.12]
----
- openconnect-internal.h | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/openconnect-internal.h b/openconnect-internal.h
-index 21460adf6..2830d693f 100644
---- a/openconnect-internal.h
-+++ b/openconnect-internal.h
-@@ -87,6 +87,7 @@
- 
- #include <libxml/tree.h>
- #include <zlib.h>
-+#include <stdlib.h>
- 
- #ifdef _WIN32
- #ifndef _Out_cap_c_
--- 
-GitLab
-
diff --git a/package/openconnect/openconnect.hash b/package/openconnect/openconnect.hash
index 86bdaa5d4e..e18485327f 100644
--- a/package/openconnect/openconnect.hash
+++ b/package/openconnect/openconnect.hash
@@ -1,3 +1,3 @@
 # Locally calculated
-sha256  a2bedce3aa4dfe75e36e407e48e8e8bc91d46def5335ac9564fbf91bd4b2413e  openconnect-9.12.tar.gz
+sha256  5b32369467db6e5f317aa1ed12cfcbb81ed00bdbc765450b6bfcbdc300944a58  openconnect-9.21.tar.gz
 sha256  dc626520dcd53a22f727af3ee42c770e56c97a64fe3adb063799d8ab032fe551  COPYING.LGPL
diff --git a/package/openconnect/openconnect.mk b/package/openconnect/openconnect.mk
index 73716d708e..e9a3257edb 100644
--- a/package/openconnect/openconnect.mk
+++ b/package/openconnect/openconnect.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-OPENCONNECT_VERSION = 9.12
+OPENCONNECT_VERSION = 9.21
 OPENCONNECT_SITE = https://www.infradead.org/openconnect/download
 OPENCONNECT_DEPENDENCIES = host-pkgconf libxml2 zlib
 OPENCONNECT_LICENSE = LGPL-2.1