diff --git a/package/linux-serial-test/0001-linux-serial-test.c-fix-missing-CMSPAR-define-on-MIP.patch b/package/linux-serial-test/0001-linux-serial-test.c-fix-missing-CMSPAR-define-on-MIP.patch
deleted file mode 100644
index fe5a1c6813..0000000000
--- a/package/linux-serial-test/0001-linux-serial-test.c-fix-missing-CMSPAR-define-on-MIP.patch
+++ /dev/null
@@ -1,54 +0,0 @@
-From c34767aa22623a21369f1464c52fc4635895223c Mon Sep 17 00:00:00 2001
-From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
-Date: Fri, 8 Nov 2019 18:25:35 +0100
-Subject: [PATCH] linux-serial-test.c: fix missing CMSPAR define on MIPS
-
-This patch is an adaptation of
-https://git.busybox.net/buildroot/diff/package/freerdp/0003-add-missing-define.patch?id=78cd32631e959e04b1a2f18be7b0757e21482438
-
-linux-serial-test.c uses CMSPAR, which is defined by glibc in
-bits/termios.h.
-
-glibc has two flavours of bits/termios.h: a generic one and an
-architecture-specific one. When installing, glibc will install the
-architecture-specific file if it exists, otherwise it installs the
-generic file. Only Alpha, MIPS, PPC and Sparc have their own
-bits/termios.h.
-
-The generic bits/termios.h, as well as the Alpha, PPC and Sparc flavours
-do define CMSPAR. However, the MIPS flavour does not define it.
-
-Define CMSPAR to the value from the generic value, which is also the
-value known to the Linux kernel for MIPS.
-
-Fixes:
- - http://autobuild.buildroot.org/results/1350cc46dcb285772b1a4c90aec6ba38fdb11e3c
-
-Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
-[Upstream status: https://github.com/cbrake/linux-serial-test/pull/20]
----
- linux-serial-test.c | 8 ++++++++
- 1 file changed, 8 insertions(+)
-
-diff --git a/linux-serial-test.c b/linux-serial-test.c
-index 5e7504e..0d4a919 100644
---- a/linux-serial-test.c
-+++ b/linux-serial-test.c
-@@ -17,6 +17,14 @@
- #include <linux/serial.h>
- #include <errno.h>
- 
-+/* 
-+ * glibc for MIPS has its own bits/termios.h which does not define
-+ * CMSPAR, so we vampirise the value from the generic bits/termios.h
-+ */
-+#ifndef CMSPAR
-+#define CMSPAR 010000000000
-+#endif
-+
- // command line args
- int _cl_baud = 0;
- char *_cl_port = NULL;
--- 
-2.23.0
-
diff --git a/package/linux-serial-test/linux-serial-test.hash b/package/linux-serial-test/linux-serial-test.hash
index e8844528b9..5cbf00a7e4 100644
--- a/package/linux-serial-test/linux-serial-test.hash
+++ b/package/linux-serial-test/linux-serial-test.hash
@@ -1,3 +1,3 @@
 # Locally computed
-sha256  edbb3ec1f287ec0fb96bac4e6a580a024af1d16b767a15f3c1b0163ff518fb71  linux-serial-test-5d11b31d9c9807cd58e53a8628bc6402b6fe7fac.tar.gz
+sha256  bfc25088e960c18e151f978b13d893dbee9a3e377e062bd56caab1bd409e4dcb  linux-serial-test-13bea838f2a7573d2a68a6d95fc9d1f153b580be.tar.gz
 sha256  a2a6760c2c6fa779a635e4a7ad00f668862ebcadb2a8a57d16662543e103e08c  LICENSES/MIT
diff --git a/package/linux-serial-test/linux-serial-test.mk b/package/linux-serial-test/linux-serial-test.mk
index 42894ed181..b0f5fe4ebf 100644
--- a/package/linux-serial-test/linux-serial-test.mk
+++ b/package/linux-serial-test/linux-serial-test.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LINUX_SERIAL_TEST_VERSION = 5d11b31d9c9807cd58e53a8628bc6402b6fe7fac
+LINUX_SERIAL_TEST_VERSION = 13bea838f2a7573d2a68a6d95fc9d1f153b580be
 LINUX_SERIAL_TEST_SITE = $(call github,cbrake,linux-serial-test,$(LINUX_SERIAL_TEST_VERSION))
 LINUX_SERIAL_TEST_LICENSE = MIT
 LINUX_SERIAL_TEST_LICENSE_FILES = LICENSES/MIT