diff --git a/drivers/si70xx/Kconfig b/drivers/si70xx/Kconfig
index c265b7475e..ccf773efd7 100644
--- a/drivers/si70xx/Kconfig
+++ b/drivers/si70xx/Kconfig
@@ -10,7 +10,8 @@ config MODULE_SI70XX
     depends on TEST_KCONFIG
     depends on HAS_PERIPH_I2C
     select MODULE_PERIPH_I2C
-    select MODULE_XTIMER
+    select MODULE_ZTIMER
+    select MODULE_ZTIMER_MSEC
 
 choice
     bool "Sensor variant"
@@ -56,4 +57,4 @@ config HAVE_SI7021
     bool
     select MODULE_SI70XX if MODULE_SAUL_DEFAULT
     help
-        Indicates that a si7021 sensor is present.
\ No newline at end of file
+        Indicates that a si7021 sensor is present.
diff --git a/drivers/si70xx/Makefile.dep b/drivers/si70xx/Makefile.dep
index 095389d9a5..f053614553 100644
--- a/drivers/si70xx/Makefile.dep
+++ b/drivers/si70xx/Makefile.dep
@@ -1,2 +1,3 @@
-USEMODULE += xtimer
+USEMODULE += ztimer
+USEMODULE += ztimer_msec
 FEATURES_REQUIRED += periph_i2c
diff --git a/drivers/si70xx/si70xx.c b/drivers/si70xx/si70xx.c
index 0dbd830b15..3ce6924a7d 100644
--- a/drivers/si70xx/si70xx.c
+++ b/drivers/si70xx/si70xx.c
@@ -19,7 +19,7 @@
  */
 
 #include <string.h>
-#include "xtimer.h"
+#include "ztimer.h"
 
 #include "si70xx_internals.h"
 #include "si70xx.h"
@@ -162,7 +162,7 @@ int si70xx_init(si70xx_t *dev, const si70xx_params_t *params)
     i2c_release(SI70XX_I2C);
 
     /* sensor is ready after at most 25 ms */
-    xtimer_msleep(25);
+    ztimer_sleep(ZTIMER_MSEC, 25);
 
     DEBUG("[DEBUG] Device initialized with success.\n");
     return SI70XX_OK;
diff --git a/tests/driver_si70xx/Makefile b/tests/driver_si70xx/Makefile
index e80b4b1bac..2a863a6b02 100644
--- a/tests/driver_si70xx/Makefile
+++ b/tests/driver_si70xx/Makefile
@@ -5,4 +5,7 @@ SI70XX_VARIANT ?= si7021
 
 USEMODULE += $(SI70XX_VARIANT)
 
+USEMODULE += ztimer
+USEMODULE += ztimer_msec
+
 include $(RIOTBASE)/Makefile.include
diff --git a/tests/driver_si70xx/app.config.test b/tests/driver_si70xx/app.config.test
index cb5672d30e..49a97de4b2 100644
--- a/tests/driver_si70xx/app.config.test
+++ b/tests/driver_si70xx/app.config.test
@@ -4,3 +4,6 @@
 # This test should also work with Si7006, Si7013 and Si7020 variants.
 CONFIG_MODULE_SI70XX=y
 CONFIG_MODULE_SI7021=y
+
+CONFIG_MODULE_ZTIMER=y
+CONFIG_MODULE_ZTIMER_MSEC=y
diff --git a/tests/driver_si70xx/main.c b/tests/driver_si70xx/main.c
index f148401cc1..a823379b76 100644
--- a/tests/driver_si70xx/main.c
+++ b/tests/driver_si70xx/main.c
@@ -20,7 +20,8 @@
 
 #include <stdio.h>
 
-#include "xtimer.h"
+#include "timex.h"
+#include "ztimer.h"
 
 #include "si70xx_params.h"
 #include "si70xx.h"
@@ -74,7 +75,7 @@ int main(void)
                temperature % 100);
 
         /* sleep between measurements */
-        xtimer_msleep(1000);
+        ztimer_sleep(ZTIMER_MSEC, MS_PER_SEC);  /* 1s delay */
     }
 
     return 0;