diff --git a/.murdock b/.murdock
index d935f9ec66..49dd297bcd 100755
--- a/.murdock
+++ b/.murdock
@@ -25,8 +25,8 @@ tests/mtd_mapper tests/driver_o* tests/driver_p* tests/driver_q*
 tests/driver_r* tests/driver_s* tests/driver_t* tests/driver_u*
 tests/driver_v*"}
 : ${TEST_KCONFIG_native:="examples/hello-world tests/periph_* tests/sys_crypto
-tests/test_tools tests/prng_* tests/xtimer_* tests/ztimer_* tests/driver_ws281x
-tests/posix_sleep"}
+tests/prng_* tests/xtimer_* tests/ztimer_* tests/driver_ws281x
+tests/posix_sleep tests/pkg_umorse"}
 
 : ${TEST_WITH_CONFIG_SUPPORTED:="examples/suit_update tests/driver_at86rf2xx_aes"}
 
diff --git a/pkg/Kconfig b/pkg/Kconfig
index 95c1df6904..4eb8695c0f 100644
--- a/pkg/Kconfig
+++ b/pkg/Kconfig
@@ -9,6 +9,7 @@ menu "Packages"
 rsource "driver_bme680/Kconfig"
 rsource "semtech-loramac/Kconfig"
 rsource "tinydtls/Kconfig"
+rsource "umorse/Kconfig"
 rsource "wakaama/Kconfig"
 
 endmenu # Packages
diff --git a/pkg/umorse/Kconfig b/pkg/umorse/Kconfig
new file mode 100644
index 0000000000..5044d3e723
--- /dev/null
+++ b/pkg/umorse/Kconfig
@@ -0,0 +1,10 @@
+# Copyright (c) 2021 HAW Hamburg
+#
+# This file is subject to the terms and conditions of the GNU Lesser
+# General Public License v2.1. See the file LICENSE in the top level
+# directory for more details.
+#
+
+config PACKAGE_UMORSE
+    bool "uMorse - Morse code encoder"
+    depends on MODULE_POSIX_SLEEP
diff --git a/tests/pkg_umorse/Makefile b/tests/pkg_umorse/Makefile
index 1ae285f35a..a3d3a5ce8b 100644
--- a/tests/pkg_umorse/Makefile
+++ b/tests/pkg_umorse/Makefile
@@ -1,9 +1,9 @@
 include ../Makefile.tests_common
 
-USEMODULE += xtimer
-
 USEPKG += umorse
 
+USEMODULE += ztimer
+
 UMORSE_DELAY_DIT ?= 120
 CFLAGS += -DUMORSE_DELAY_DIT=$(UMORSE_DELAY_DIT)
 
diff --git a/tests/pkg_umorse/app.config.test b/tests/pkg_umorse/app.config.test
new file mode 100644
index 0000000000..6d4301c763
--- /dev/null
+++ b/tests/pkg_umorse/app.config.test
@@ -0,0 +1,6 @@
+CONFIG_MODULE_POSIX_SLEEP=y
+CONFIG_MODULE_ZTIMER=y
+CONFIG_MODULE_ZTIMER_PERIPH_TIMER=y
+CONFIG_MODULE_ZTIMER_USEC=y
+CONFIG_MODULE_ZTIMER_MSEC=y
+CONFIG_PACKAGE_UMORSE=y
diff --git a/tests/pkg_umorse/main.c b/tests/pkg_umorse/main.c
index c2487afab4..7f7e997eef 100644
--- a/tests/pkg_umorse/main.c
+++ b/tests/pkg_umorse/main.c
@@ -21,14 +21,14 @@
 
 #include "board.h"
 #include "led.h"
+#include "ztimer.h"
 #include "periph_conf.h"
-#include "xtimer.h"
-#define UMORSE_MSLEEP(m)    xtimer_msleep(m)
 
 #include "umorse.h"
 #include "print.h"
 
-#define CODE_LEN	(64U)
+#define UMORSE_MSLEEP(m)        ztimer_sleep(ZTIMER_MSEC, m);
+#define CODE_LEN                (64U)
 
 void blink_dit(void *args, uint8_t flags)
 {